Denmark of 9 April 1940 ISOT to 1 February 1864.

So Danish 1940 company's can buy it from the Danish Patent and Trademark Office (which is good for the 1940 Danish treasury) and claim it as their own,

One slight quibble with this excellent ISOT. How is Denmark supposed to operate internal combustion engines and electrical systems in 1864?

As I am discovering in "Thunder and Lightning", it is not easy to push things even a half decade sooner than they normally could have happened, or to take different more audacious actions because the means are not built or existent yet.

Let us take some particularly tough examples.

In the air, let us look at the Bristol Bulldog. or Gloster Gauntlet. Both planes used relatively reliable Bristol 9 cylinder radial aero engines, rated for about 30 hours flight aloft before engines had to be dismounted, torn down and rebuilt from spare parts. Both planes used 7.7 mm Vickers machine guns. Both planes used fabric over tube metal construction extensively and both planes to be built or repaired required welding of steel tubes for internal structure, HTS steel wires, plus rubber tires.

On land, the Sweish Pansarbil armored had 5,000 or so individual parts (It is Swedish, which means it is German engineering with a Swedish accent. (Joke).M.). The rubber tire problem exists, and the Volvo 6 cylinder gasoline engine, while reliable is an expletive deleted to repair when it does break. The Madsen cannon uses shells and propellants that Denmark can make, but only in small quantities. The machine gun is Czech origin and is hopeless because Mauser has not invented the bullet, yet. 

Pistol technology, probably with revolvers and maybe simpler Browning autmatics, the Danish industrial base is okay with the available 1860s steels.
         
Rifles, the Krag offers a terrible option. it is actually about the worst of the first generation of smokeless powder bolt action rifles. You would want to replace it soonest with the Mauser in that reverse engineered 7.92 Mauser bullet bore size the Germans have not invented yet. 

Machine pistol? The Suomi requires a spring nobody in 1864 knows how to make yet. Does Denmark have a steel plant with a Bessemer process and access to Minnesota meteor iron? Swedish meteor iron will do in a pinch. Also you need Danish commandoes to kidnap Adolf Martens. Richard Stribick has not been born yet.      

Machine guns? Brownings. SIMPLE except for the springs. Then you have to do what you did for machine pistols. Kidnap that German and invent the electric furnace. 

As far as cannon are concerned, either send your best and brightest metallurgest to America or Britain (Bessemer) and teach them how to make modern gunmetal or somehow overrun Krupp's factories in a Danish offensive inside a year. Your existent artillery will wear their bores out by then. 

If you can buy five years, you can fix a lot of these problems, behind a wall of machine guns and artillery, but you need two things:

a. an ally to provide materials.
b. time to stand up a WWI level steampunk tech.

Actually ELECTRICITY will be the least of your worries, as the basics of what you need for it Tesla invented by 1895 and you have and can make it at least at the small scale factory shop level. That includes key send and receive radio, though telephonic voice might be a little bit of work. .    
   

Copenhagen 14 April 1940/6 February 1864

Government decide to lease a Fokker F-VIIa of DDL for dropping leaflets on primarily Berlin.
In days to follow leaflets are dropped on Berlin, Hanover, Bremen, Hamburg, Oldenburg, Schwerin, Kiel and Rendsburg too; telling of the Austro - Prussian defeat in Schleswig.

Danish Government also decide to lease a DDL Fokker F-XII to fly a Delegation to London; part of the Delegation will be travelling aboard Navy Ship Niels Juel from Esbjerg.
The Fokker F-XII was decided upon due to its impressive size but also its ability to operate from a poor field. The Niels Juel would carry fuel for the aircraft.
As the route would primarily be over the North Sea Lieutenantgeneral Gørtz, Adjudant to His Majesty King Christian X, was to travel as soon as possible to Den Haag to meet King Willem II to get permission for the aircraft to enter Netherlands airspace before crossing to Britain. Along the General a Radiooperator would travel to transmit the outcome of the meeting with King Willem. The General would be flown by the DDL Fokker F-VIIa to Den Haag.
Danish Navy ships of the 1. Squadron would orderede to post along the route to send a guiding signal to lead the aircraft safely to the destination. The ships was ordered off to their destinations immediately.
The Niels Juel would arrive at Esbjerg early on the morning the next day and then await the arrival of the shipborne delegation and aircraftfuel before leaving for London.

Copenhagen 14 April 1940/ 6 February 1864

Swedish Envoy Hamilton appeared at the Danish Ministry of Foreign Affairs presenting his affidavit as outlined by the Swedish King Carl 15.
The King empowered his Envoy to act on his behalf as already outlined during their talks.
The King showed great interest in development of large caliber Artillery in cooperation with the Ammunitions Arsenalet, Danish Navy Works and Burmeister & Wain the latter the Danish manufacturer of steel with its Siemens-Martin furnace.
On the Swedish side Bofors Works would participate as it already was working in the Siemens-Martin and Bessemeer process' to make steel as was the Burmeister & Wain Ship Yard.