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Patents > Applicant firm: None & CPCs: None & Number of claims: 2-3

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None (333)
Granted:
Supplementary to patent:
None (275) · Patent DE-1908-221549 (4) · Patent FR-1909-403985 (3) · Patent GB-1911-12232 (3) · Patent NO-1915-12-15 Carl Alfred Johansson (3) · Patent CH-1912-62201 (3) · Patent DE-1909-02-25 Hugo Erdmann (3)
Related to aircraft:
Patent agent:
None (315) · Marks & Clerk (6) · E. Blum & Co. (5) · Haseltine, Lake & Co. (4) · Boult, Wade & Tennant (4) · A. Ritter (4) · Munn & Co. (3) · H. Kirchhofer (3) · W. P. Thompson & Co. (3) · Abel & Imray (3) · None (3) · Hy. Fairbrother (3)
National tech categories:
HU V/h (99) · None (97) · AT 77d (75) · DE 77 (19) · DK 77 (18) · DE 77h (11) · CH 115 (9) · CH 129b (6) · GB 4 propel & steer (5) · CH 129c (5) · CH 129a (4) · DE 77h.6 (4) · AT 37a (4) · DE 77h.5 (4) · AU 90.5 (3) · AU 90.3 (3) · GB 4 framework (3) · GB 4 with buoyant (3) · DE 77h.15 (3)
CPCs: (Click arrow to add another value)
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