Drilldown: Patents

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Patents > Related to aircraft: .5 & Number of text pages: 1-2

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Office:
Inventors:
William H. Holland (3) · Johannes Heinze (3) · Richard Lehmann (3) · None (2) · Edward Smethurst (2)
Inventor country:
Applicant person:
William H. Holland (3) · Johannes Heinze (3) · Richard Lehmann (3) · None (2) · Edward Smethurst (2)
Applicant type:
Applicant is inventor:
Tech fields:
marine (12) · marine propeller (6) · propulsion (5) · Windmill (5) · projectile (5) · paddle-wheel (5) · paddle-wheels (4) · marine propulsion (4) · paddle wheel (3) · water-wheels (3) · toy (3) · propeller (3) · hitch (2) · speed (2) · attachment (2) · hook (2) · None (2) · control (2) · feathering (2)
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National tech categories:
None (23) · USPC 416/194 (5) · USPC 416/196A (3) · USPC 416/98 (2) · USPC 416/113 (2) · USPC 416/117 (2) · USPC 416/119 (2) · USPC 416/196R (2) · USPC 416/112 (2) · USPC 416/108 (2) · FR 10.2 (2)
CPCs:
CPC B64C27/54 (14) · None (7) · CPC B64C11/006 (6) · CPC F01D5/06 (5) · CPC B64C11/00 (5) · CPC Y02E10/74 (4) · CPC B64C11/48 (4) · CPC Y02E10/20 (3) · CPC B64C11/346 (3) · CPC F05B2260/74 (3) · CPC F03D3/00 (3) · CPC B63H1/12 (3) · CPC F03B17/065 (2) · CPC Y02E10/72 (2) · CPC B64C29/0033 (2) · CPC Y02E10/223 (2) · CPC B63H1/04 (2)
First filing:
Cites these patents:
Citations from after 1930:
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