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Patents > Office : CH or NZ or US & Tech fields : Airship or stability

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Supplementary to patent:
None (405) · Patent NO-1915-12-15 Carl Alfred Johansson (3) · Patent DE-1913-301564 (2) · Patent US-1913-04-21 George Raymond Lawrence (2) · Patent GB-1911-2636 (2) · Patent GB-1908-4519 (2) · Patent FR-1912-447782 (2) · Patent GB-1909-26034 (2) · Patent AU-1911-510 (2)
Related to aircraft:
Patent agent:
None (193) · Munn & Co. (29) · Victor J. Evans (20) · C. A. Snow & Co. (7) · E. Blum & Co. (7) · None (6) · Henry Hughes (5) · Charles W. Hills (5) · R. S. & A. B. Lacey (4) · Spear, Middleton, Donaldson & Spear (4) · Watson E. Coleman (4) · Fritz Isler (4) · H. Kirchhofer (3) · H. C. Everett Co. (3)
Assigned to:
None (413) · 1 (3) · Goodyear Tire and Rubber Company (3) · (1/4) (2)
National tech categories:
None (57) · USPC 244/80 (37) · CH 129b (21) · USPC 244/45R (19) · USPC 244/90R (19) · USPC 244/177 (16) · USPC 244/93 (14) · USPC 244/48 (13) · USPC 244/35R (11) · USPC 244/79 (11) · USPC 244/78.1 (10) · USPC 244/87 (9) · USPC 244/51 (8) · USPC 244/13 (8) · USPC 244/22 (8) · USPC 244/46 (8) · USPC 244/6 (8)
IPCs:
None (334) · IPC B64B1/00 (18) · IPC B64C17/00 (15) · IPC B64C39/00 (11) · IPC B64C13/00 (9) · IPC B64C3/14 (7) · IPC B64C3/00 (7) · IPC B64C31/00 (5) · IPC B64B1/40 (5) · IPC B64C33/00 (5) · IPC CPC B64C13/00 (4) · IPC F42B10/00 (4) · IPC B64C33/02 (3) · IPC B64C31/06 (3) · IPC B64C2700/6295 (3) · IPC B64C19/00 (3) · IPC B64C3/38 (3) · IPC B64C1/00 (3) · IPC B64C9/00 (3)
CPCs:
CPC B64C17/00 (63) · CPC B64C13/00 (51) · None (44) · CPC B64C2700/6295 (34) · CPC B64B1/00 (31) · CPC B64C23/005 (21) · CPC B64B1/40 (18) · CPC B64C3/385 (17) · CPC B64C3/14 (15) · CPC B64C39/08 (12) · CPC B64C39/005 (12) · CPC B64C13/24 (11) · CPC B64C33/02 (11) · CPC B64C17/06 (7) · CPC B64C9/00 (7) · CPC Y10T74/1218 (6)
First filing:
Citations from after 1930:

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