Drilldown: Patents

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Patents > Applicant firm: None & Patent agent: None & Family year: 1913

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Tech fields:
None (306) · airplane (41) · LTA (31) · stability (28) · Frame (26) · design (22) · wings (20) · propulsion (16) · construction (15) · propellers (15) · safety (15) · automatic stability (11) · control (9) · parachutes (8) · aerodynamics (8) · airship (7) · landing (7) · gas (7)
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None (420) · Patent US-1913-04-21 George Raymond Lawrence (3) · Patent GB-1913-16499 (3) · Patent FR-1913-461629 (2) · Patent FR-1913-452942 (2) · Patent FR-1913-466195 (2) · Patent DE-1913-301564 (2) · Patent DE-1913-287314 (2) · Patent GB-1913-22557 (2) · Patent US-1913-04-01 Cooper (2)
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National tech categories:
None (244) · FR 6.4 (37) · HU V/h (23) · AT 77d (8) · BE K (6) · DE 77h.5 (6) · USPC 244/233 (5) · USPC 244/119 (4) · USPC 244/22 (4) · USPC 244/90R (4) · USPC 244/47 (3) · USPC 244/147 (3) · USPC 244/125 (3) · USPC 244/93 (3) · DE 77h (3) · USPC 244/101 (3)
IPCs:
None (397) · IPC B64B1/00 (10) · IPC B64C17/00 (9) · IPC B64C1/00 (7) · IPC B64C39/00 (5) · IPC B64B1/58 (5) · IPC B64C33/02 (3) · IPC B64C31/04 (3) · IPC B64C25/00 (3) · IPC B64C35/00 (2) · IPC B64C3/00 (2) · IPC B64C23/00 (2) · IPC B64C3/54 (2) · IPC B64C11/00 (2) · IPC B64B1/62 (2)
CPCs:
None (100) · CPC B64C17/00 (45) · CPC B64C35/00 (37) · CPC B64C2700/6295 (35) · CPC B64C39/00 (30) · CPC B64B1/00 (25) · CPC B64C2700/6218 (18) · CPC B64F2700/6261 (13) · CPC B64C13/00 (12) · CPC B64C3/00 (9) · CPC B64C23/005 (9) · CPC B64B1/58 (9) · CPC B64C33/02 (8) · CPC B64C2700/6219 (8) · CPC B64C33/00 (7) · CPC B64C11/006 (7) · CPC B64C3/56 (7) · CPC B64C2700/6212 (6) · CPC B64C3/14 (6)
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Citations from after 1930:
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