Drilldown: Patents

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Patents > National tech categories: None & Family year: 1900 - 1999 & Number of figures: 20-40

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Office:
Inventors:
Alfred John Macy (4) · Thomas Osborne Perry (3) · None (2) · Charles Marie von Eugen (2) · Vigilio Baldo (2) · Robert Kemp (2) · Harry Letchford (2) · William Tattersall (2)
Inventor country:
Applicant person:
None (6) · Alfred John Macy (4) · Thomas Osborne Perry (3) · Charles Marie von Eugen (2) · Vigilio Baldo (2) · Harry Letchford (2) · William Tattersall (2)
Applicant is inventor:
Tech fields:
airplane (12) · None (11) · wings (9) · design (7) · Propellers (6) · fuselage (6) · construction (6) · frame (5) · stability (4) · control (3) · propulsion (3) · propeller (3)
Full specification filed date:
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Publication date:
Related to aircraft:
National tech categories: (Click arrow to add another value)
CPCs:
CPC B64C17/00 (8) · CPC B64C2700/6218 (7) · None (5) · CPC B64C3/00 (3) · CPC B64C11/20 (2) · CPC B64C39/005 (2) · CPC B64C27/10 (2) · CPC B64C35/00 (2) · CPC B64C11/006 (2) · CPC B64B1/58 (2)
First filing:
Citations from after 1930:

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