Drilldown: Patents

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Patents > Applicant firm: None & Supplementary to patent: None & Number of claims: 11

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Office:
Inventors:
James Dennis Roots (2) · Ralph Hazlett Upson (2) · Spencer Heath (2)
Inventor country:
Applicant person:
None (7) · Spencer Heath (2) · James Dennis Roots (2)
Applicant firm: (Click arrow to add another value)
Applicant type:
Applicant is inventor:
Tech fields:
stability (18) · airplane (16) · None (14) · propeller (13) · propulsion (13) · navigation (11) · frame (10) · LTA (7) · wings (6) · automatic stability (6) · design (6) · rudder (5) · airfoil (5) · control (5) · wheels (5) · marine (4) · propellers (4) · piloting (4) · car (4) · construction (4)
Full specification filed date:
Application number:
None (18)
Granted:
Publication date:
Supplementary to patent: (Click arrow to add another value)
Related to aircraft:
Patent agent:
None (19) · Munn & Co. (4) · Borame et Julien (3) · Boult, Wade & Tennant (2) · None (2) · E. R. Royston & Co. (2)
National tech categories:
None (29) · FR 6.4 (6) · USPC 244/45R (5) · HU V/h (4) · USPC 244/90R (3) · USPC 244/119 (2) · USPC 244/70 (2)
CPCs:
None (12) · CPC B64C2700/6295 (7) · CPC B64C39/08 (4) · CPC B64B1/00 (4) · CPC B64C3/385 (4) · CPC B64C23/005 (4) · CPC B64C17/00 (3) · CPC B64C39/00 (3) · CPC Y02T50/10 (2) · CPC B64C39/005 (2) · CPC B64C33/02 (2) · CPC B64C33/00 (2) · CPC Y02T50/145 (2) · CPC B64B1/40 (2) · CPC B64C11/006 (2)
First filing:
Citations from after 1930:
Number of claims:
Number of diagram pages:

Showing below up to 72 results in range #1 to #72.

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