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Patents > Tech fields : balloon or propeller shaft & First filing: Yes

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Office:
Inventors:
None (10) · Johann Schütte (9) · Ralph Hazlett Upson (5) · Walter Hermann von Mach (5) · Leonardo Torres Quevedo (4) · Joseph Allison Steinmetz (4) · Albert Livingstone Blackman (3) · Comte Antoine Apraxine (3)
Inventor country:
Applicant person:
None (41) · Johann Schütte (9) · Leonardo Torres Quevedo (4) · Joseph Allison Steinmetz (4) · Albert Livingstone Blackman (3) · Comte Antoine Apraxine (3) · Edward Charles Robert Marks (3)
Applicant is inventor:
Tech fields: (Click arrow to add another value)
Full specification filed date:
Application number:
None (124)
Granted:
Related to aircraft:
Patent agent:
None (130) · Marks & Clerk (10) · Munn & Co. (7) · J. Bonnet-Thirion (3) · None (3) · Haseltine, Lake & Co. (3) · Société Marillier et Robelet (2) · Jensen & Son (2) · Mennons (2) · Wheatley & Mackenzie (2) · D. W. Glassie (2) · Clement Lean (2) · Herbert Haddan & Co. (2) · Chassevent (2) · Boult, Wade & Tennant (2) · Bert (2) · Victor J. Evans (2) · Brewer & Son (2)
National tech categories:
None (69) · FR 6.4 (17) · FR 6.3 (12) · USPC 244/30 (11) · USPC 244/97 (10) · DE 77 (8) · USPC 244/127 (6) · USPC 244/26 (6) · DE 77h.4 (6) · USPC 244/125 (5) · USPC 244/31 (5) · USPC 244/99 (5) · USPC 244/25 (5) · USPC 244/28 (5) · FR 5 (4)
First filing: (Click arrow to add another value)
Citations from after 1930:
Number of diagram pages:

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