Example Prototypes
 Advanced Artillery

 Rockets

 Heavy Tanks

 Increased Factory Production
1 stack - Minor
2 stacks - Advanced Minor (Technology - Increased Factory Production)
3 stacks - Major
4 stacks - Adcanced Major (Technology - Increased Factory Production)

 War Bonds

 Improved Mechanized Infantry

 Super Submarines

 Jet Fighters

 Improved Shipyards

 Radar

 Long-Range Aircraft

 Heavy Bombers






