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Patents > Inventor location : Allegheny county, Pennsylvania or PA or None

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Inventor country:
US (3559) · FR (3516) · None (2576) · DE (1792) · GB (1441) · AT (330) · IT (273) · BE (243) · CH (160) · RU (130) · CA (116) · HU (107) · AU (95) · ES (55) · NL (48) · SE (46) · RO (41) · NO (39) · AH (39) · NZ (36)
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Tech fields:
None (14656) · LTA (10) · control (5) · navigation (5) · airplane (5) · propulsion (4) · propellers (4) · monoplane (3) · structure (2) · parachute (2) · motors (2) · wheels (2) · Lift (2) · stability (2)
First filing:
Cites these patents:
None (14497) · 1 (11) · 0 (9) · 1910 (6) · CPC B64B1/00 (4) · 1911 (4) · Patent GB-1908-17150 (3) · Patent FR-1911-438363 (3) · Patent AT-1909-47911 (3) · 1909 (3)
Citations from after 1930:
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