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Patents > Patent agent : Munn & Co. or Richards & Co. & Family year: 1800 - 1899 & Number of text pages: 2-3

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LTA (14) · propulsion (9) · navigation (8) · military (5) · flapping (5) · glider (4) · projectile (4) · propeller (4) · balloon (3) · car (3) · sail (3)
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None (4) · USPC 244/30 (4) · USPC 244/3.23 (3) · USPC 244/26 (2) · USPC 416/116 (2) · USPC 244/64 (2) · USPC 244/27 (2)
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