PATENT ISSUED TO JOHN M. BROWNING FOR AUTOMATIC LOADING
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PATENT ISSUED TO JOHN M. BROWNING FOR AUTOMATIC LOADING AIRCRAFT CANNON A rare U.S. Letters Patent issued to firearms inventor JOHN M. BROWNING (1855-1926) for his design of a 37mm air cooled magazine-fed 135 rounds-per-minute aircraft cannon. The printed patent description written by Browning and filed on Dec. 15 1923 called for his new apparatus to be: ""...adapted to fire large caliber projectiles...a novel form of lock frame...capable of withstanding the severe shocks...the gun can be entirely taken apart and assembled quickly..."". The 42pp. 4to. application is bound with blue ribbon and red seal. The letters patent was issued to Browning on Feb. 3 1925. With cross sectional diagrams and full description. Very good.
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PATENT ISSUED TO JOHN M. BROWNING FOR AUTOMATIC LOADING
Estimate $300 - $400
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