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Patents > Year filed: 1892 & Family year: 1890 - 1899

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Inventors:
Sumter Beauregard Battey (4) · Georg Gabrielii (2) · Louis Gathmann (2) · Frank M. Ashley (2)
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Tech fields:
LTA (15) · Propulsion (12) · navigation (8) · balloon (8) · whole (6) · frame (6) · military (5) · projectile (4) · marine (4) · car (4) · parachute (4) · rocket (4) · propeller (3) · aluminum (3) · None (3) · safety (3) · combustion (3) · kite (3) · motor (3)
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None (10) · FR 6.3 (10) · DE 77 (5) · USPC 244/3.23 (3) · GB 4 propel & steer (2) · GB 4 without buoyant (2) · GB 4 with buoyant (2) · USPC 89/1.3 (2)
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