Drilldown: Patents

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Patents > Office : DK or GB & Assigned to : Moteurs Salmson or Sperry Gyroscope Company or None & National tech categories : DE 77 or USPC 244/45R or None & CPCs: None

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Office: (Click arrow to add another value)
Inventor country:
None (1115) · GB (179) · DE (64) · FR (62) · US (46) · HU (9) · IT (8) · BE (7) · AT (7) · CH (7) · RU (4) · NO (4) · CA (3) · NZ (3) · AH (3)
Applicant is inventor:
Tech fields:
None (1068) · LTA (135) · propulsion (113) · navigation (79) · frame (57) · balloon (56) · propeller (55) · airplane (50) · stability (47) · design (35) · rudder (30) · wings (26) · Propellers (26) · marine (24) · control (24) · hybrid (23) · Subsystem (23) · whole (22) · car (22)
Granted:
Supplementary to patent:
None (1385) ·   (11) · Patent GB-1906-27312 (2) · Patent FR-1907-377174 (2) · Patent CH-1907-41855 (2) · Patent GB-1912-18166 (2) · Patent NO-1915-12-15 Carl Alfred Johansson (2)
Related to aircraft:
Patent agent:
None (1225) · Haseltine, Lake & Co. (22) · Marks & Clerk (18) · Boult, Wade & Tennant (16) · Abel & Imray (11) · Herbert Haddan & Co. (9) · W. P. Thompson & Co. (9) · None (7) · Brierley & Howard (7) · G. F. Redfern & Co. (7) · Wheatley & Mackenzie (7) · J. Owden O'Brien (6) · Hy. Fairbrother (6) · Phillips & Leigh (5) · Harris & Mills (5) · Boult, Wade & Kilburn (5) · Jensen & Son (4) · J. E. Evans-Jackson & Co. (4) · Alfred Julius Boult (4) · A. M. & William Clark (4)
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National tech categories: (Click arrow to add another value)
IPCs:
CPCs: (Click arrow to add another value)
First filing:
Citations from after 1930:
Number of diagram pages:

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