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Techtypes > Keywords : frame or propulsion

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Simple tech terms (19) · LTA (5) · CPC B64D (3) · CA 244/3 (3) · GB 4 (3) · Swiss patent classifications, 1908-1920 (3) · dirigible (3) · USPC 244/62 (3) · USPC 244 (3) · Dutch patent classifications (2) · USPC 244/117 (2) · CPC B64C3/18 (2) · NL 62 (2) · None (2) · CH 129 (2) · kite (2) · British patent classifications (2) · USPC 446/34 (2) · USPC 446/57 (2) · CPC B64D35/00 (2)
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None (68) · CPC B64D35/06 (2)
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