Drilldown: Patents

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Patents > Year granted: 1910 - 1919 & National tech categories : DE 77h.6 or USPC 244/93

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Office:
Inventors:
None (8) · Christian Lorenzen (3) · Hellmuth Hirth (3) · Lucien Chauvière (2) · Jakob Haw (2) · Ira Allen (2)
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Applicant person:
None (19) · Ira Allen (2) · Lucien Chauvière (2) · Hellmuth Hirth (2)
Applicant is inventor:
Tech fields:
propeller (31) · None (21) · stability (10) · propulsion (7) · airplane (7) · navigation (5) · LTA (4) · helicopter (4) · metal (3) · propellers (3) · frame (3) · automatic stability (3) · subsystem (3)
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Showing below up to 71 results in range #1 to #71.

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