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To list every single one would not be feasible. As for types, some of the types invented after 1920 include..
General Purpose Machine Guns
Guided Missiles
Assault Rifles
The modern tank
Personal Defense Weapons (PDWs)
Grenade launchers
Anti-tank rockets and missiles
Jet aircraft
Helicopter gunships
What else can I help you with?
Related Questions
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they where invented in the 1920's:D
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The theremin was invented in 1920.
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Was the model T invented in 1920?
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ugg boots were invented in 1920.
When were band-ads invented?
Band-Aid was invented in 1920.
What Month and Day Was The Band-Aid Invented?
The band aid was invented in 1920 by Earl Dickinson. The exact month and day in 1920 that he invented the Band-Aid is unknown.
When was the first backpack invented?
1920
When was NFL football invented?
1920
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