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Patents > Applicant is inventor: None & National tech categories : GB 4 parachutes or None

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Office:
Inventors:
None (41) · Everard Richard Calthrop (4) · August Wendtland (2) · George Raymond Lawrence (2) · Charles de Coster (2) · W. L. Hamilton (2) · George Henry Challenger (2) · Richard Wilcke (2) · Eugène Lallemand (2) · Albert Graff (2)
Inventor country:
Applicant person:
None (95) · Everard Richard Calthrop (4) · George Henry Challenger (2)
Applicant is inventor: (Click arrow to add another value)
Tech fields:
airplane (35) · None (32) · propeller (15) · frame (13) · LTA (12) · military (11) · propulsion (10) · design (8) · stability (8) · marine (8) · navigation (8) · subsystem (7) · balloon (7) · parachute (7) · cargo (6) · propellers (6)
Full specification filed date:
Granted:
Related to aircraft:
National tech categories: (Click arrow to add another value)
CPCs:
None (79) · CPC B64D7/02 (6) · CPC B64C35/00 (3) · CPC B64D27/04 (3) · CPC B64F1/14 (2) · CPC B64C11/303 (2) · CPC B64C11/006 (2) · CPC B64B1/58 (2) · CPC B64B1/00 (2) · CPC B64C3/00 (2) · CPC B64C3/26 (2) · CPC B64C17/00 (2)
First filing:
Citations from after 1930:
Number of diagram pages:

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