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Patents > Year filed: 1917 & CPCs : CPC F03D9/14 or None

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Year filed:
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Inventors:
None (43) · Alfred John Macy (8) · Reinhold Richter (8) · Thomas Sopwith (8) · Emil Schimanek (5) · Jakob Haw (4) · Oszkár Asbóth (3) · Vilmos Zurowec (2) · Hjalmar Pålson (2) · Hans Windhoff (2) · George Lanzius (2) · Oscar Gerhardt (2) · Detlev Zickler (2) · Eduard Zaparka (2)
Inventor country:
Applicant person:
None (50) · Alfred John Macy (8) · Thomas Sopwith (8) · Reinhold Richter (7) · Emil Schimanek (3) · Jakob Haw (3) · Oscar Gerhardt (2) · Detlev Zickler (2) · Oskar von Asbóth (2) · Vilmos Zurowec (2) · Hjalmar Pålson (2) · George Lanzius (2) · Hans Windhoff (2)
Applicant is inventor:
Tech fields:
airplane (35) · airship (23) · design (18) · Propellers (16) · instrument (15) · construction (14) · subsystem (14) · frame (12) · LTA (11) · stability (11) · safety (9) · engine (8) · gas (7) · aerodynamics (7) · military (7) · wings (7) · ICE (6) · pressure (6) · propulsion (6)
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Supplementary to patent:
None (69) · Patent HU-1917-73345 (2) · Patent DE-1916-332540 (2) · Patent DE-1917-300978 (2) · Patent GB-1916-109146 (2) · Patent GB-1916-112641 (2) · Patent GB-1916-110419 (2) · Patent US-1916-1289206 (2) · Patent HU-1917-77280 (2)
Related to aircraft:
National tech categories:
HU V/h (53) · AT 77d (18) · None (7) · DK 77 (5) · AU 90.5 (5) · DE 42k.18 (3) · HU VII/a (2) · DE 77h.5 (2) · DE 77h.6 (2) · CA 341/80 (2) · FR 6.4 (2)
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First filing:
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Citations from after 1930:
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