Drilldown: Patents

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Patents > Year filed: 1917 & Applicant is inventor : No or Other or None & Publication date: 1900 - 1999 & CPCs : CPC B64C2700/6256 or CPC B64C35/00 or None

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Tech fields:
Airplane (35) · airship (22) · Design (20) · propellers (15) · construction (13) · frame (13) · subsystem (12) · LTA (9) · Instrument (9) · aerodynamics (9) · military (8) · wings (7) · rigid (6) · gas (6) · stability (6)
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None (53) · Patent DE-1916-10-07 Oscar Gerhardt (2) · Patent HU-1917-73345 (2) · Patent DE-1917-02-16 Oscar Gerhardt (2) · Patent DE-1916-332540 (2) · Patent US-1916-1289206 (2)
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Showing below up to 103 results in range #1 to #103.

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