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Patents > Office : DE or US or Other & Tech fields : Propellers or balloon

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Office: (Click arrow to add another value)
Inventor country:
FR (566) · DE (251) · US (238) · None (133) · GB (131) · BE (81) · HU (63) · AT (57) · CH (22) · IT (22) · RU (20) · ES (19) · RO (14) · AH (12) · CA (10) · Prussia (7) · Poland (7) · NL (6)
Applicant firm:
None (1503) · A. Wunderlich & Cie, Ingénieurs-Conseils (36) · Motorluftschiff Studiengesellschaft m.b.H (6) · Siemens-Schuckert-Werke G.m.b.H. (5) · August Riedinger Ballonfabrik Augsburg G.m.b.H. (5) · British and Colonial Aeroplane Co. (5) · Daimler Motoren-Gesellschaft (5) · Jacob Lohner & Co. (4) · Westinghouse Electric & Manufacturing Company (3) · Borrmann and Kaerting (3) · Siemens-Schuckert Werke GmbH (3)
Applicant is inventor:
Tech fields: (Click arrow to add another value)
Application number:
Granted:
Related to aircraft:
Assigned to:
None (1606) · Goodyear Tire and Rubber Company (6) · Rubber Balloon Company of America (3) · Westinghouse Electric & Manufacturing Company (3) · International Aeronautical Construction Company (2)
National tech categories:
None (472) · FR 6.4 (336) · HU V/h (100) · BE K (96) · FR 6.3 (84) · FR 6.2 (59) · AT 77d (45) · FR 5 (40) · DE 77 (32) · DE 77h.4 (17) · IT 8 (16) · USPC 244/30 (15) · GB 4 aërostats (15) · GB 4 with buoyant (14) · USPC 244/97 (12) · FR 6 (12) · DE 77h (11) · CH 115 (10) · DE 77h.6 (10) · RU Group V (9)
IPCs:
None (913) · IPC B64B1/00 (101) · IPC B64C11/00 (68) · IPC B64C39/00 (64) · IPC B64B1/58 (28) · IPC B64C23/00 (28) · IPC B63H1/12 (26) · IPC B64C11/04 (24) · IPC B64C11/20 (23) · IPC B64B1/40 (22) · IPC B64C11/16 (22) · IPC B64C27/04 (21) · IPC B64C1/00 (16) · IPC B64C17/00 (16) · IPC B64B1/62 (14) · IPC B64D35/04 (12) · IPC B64C11/36 (12) · IPC B64C33/02 (12) · IPC B64D27/00 (9) · IPC B64C35/00 (8)
First filing:
Citations from after 1930:
Number of diagram pages:

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