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Patents > Supplementary to patent : Patent US-1913-04-21 George Raymond Lawrence or None & CPCs : CPC B64C33/02 or CPC B64C35/00 & Number of claims: 2-3

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Office:
Inventors:
None (9) · Friedrich Kopsch (2) · Armand-Jean-Auguste Deperdussin (2) · Paul Grosser (2)
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Applicant person:
None (16) · Paul Grosser (2) · Friedrich Kopsch (2)
Applicant is inventor:
Tech fields:
flapping (15) · None (10) · hydroaeroplane (10) · wings (9) · frame (8) · propulsion (7) · Hydroplane (6) · marine (6) · subsystem (5) · ornithopter (5) · design (5) · takeoff (5) · LTA (5) · aerodynamics (4) · launching (4) · safety (4) · navigation (4) · propeller (4) · airplane (4)
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Application number:
None (11)
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Supplementary to patent: (Click arrow to add another value)
Related to aircraft:
Patent agent:
None (17) · Armengaud jeune (3) · Charles Dony (2) · Louis Tailfer (2) · H. C. Everett Co. (2) · Marks & Clerk (2) · Brewer & Son (2) · Hippolyte Josse (2)
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Citations from after 1930:
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