Drilldown: Patents

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Patents > Year granted: 1900 - 1999 & Inventor country: DE & Assigned to: None & National tech categories : DE 77h.5 or USPC 244/139 & Family year: 1900 - 1999

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Tech fields:
airplane (42) · frame (29) · construction (20) · design (19) · Wings (15) · biplane (13) · fuselage (12) · None (8) · control (6) · propeller (5) · subsystem (5) · rudder (5) · navigation (4) · steering (4)
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CPCs:
CPC B64C3/00 (24) · CPC B64C2700/6235 (16) · None (6) · CPC B64C9/02 (4) · CPC B64C13/00 (4) · CPC B64C17/00 (4) · CPC B64D7/02 (3) · CPC B64C2700/6233 (3) · CPC B64C39/04 (2) · CPC B64C39/00 (2) · CPC B64C35/00 (2) · CPC B64C31/02 (2) · CPC B64C3/56 (2) · CPC B64C1/00 (2) · CPC B64C3/185 (2) · CPC B64C3/18 (2) · CPC B64C3/385 (2) · CPC B64C23/005 (2) · CPC B64C1/26 (2) · CPC B64C11/00 (2)
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Showing below up to 82 results in range #1 to #82.

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