Drilldown: Patents

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Patents > Year granted: 1920 - 1929 & IPCs : IPC B64B1/00 or IPC B64C25/00 or IPC B64C39/00

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Tech fields:
frame (9) · airplane (8) · chassis (7) · None (6) · propulsion (3) · LTA (3) · landing gear (3) · design (3) · landing (3)
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CPCs:
CPC B64C25/06 (6) · CPC B64C39/00 (5) · CPC B64C2700/6295 (5) · CPC B64F2700/6226 (5) · CPC B64B1/00 (3) · CPC B64B1/58 (3) · CPC B64C39/08 (3) · CPC B64C25/64 (2) · CPC B64C39/005 (2) · CPC B64C39/003 (2)
First filing:
Citations from after 1930:
Number of text pages:
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Showing below up to 30 results in range #1 to #30.

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