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Patents > Grant date: 1920 - 1929 & IPCs : IPC B64B1/62 or IPC B64C1/00 or IPC B64C25/00

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Tech fields:
airplane (9) · frame (9) · chassis (8) · stability (7) · fuselage (6) · None (5) · landing (4) · Subsystem (4) · construction (4) · automatic stability (3) · landing gear (3) · compartments (2) · gyroscope (2) · LTA (2) · design (2) · metal (2) · flying machines (2) · undercarriage (2) · airship (2)
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CPCs:
CPC B64C17/00 (6) · CPC B64C2700/6218 (6) · CPC B64C1/00 (6) · CPC B64F2700/6226 (6) · CPC B64C25/06 (6) · CPC B64C2001/0063 (4) · CPC B64C25/64 (4) · CPC B64C2001/0081 (4) · CPC B64B1/62 (3) · CPC B64C17/06 (3) · CPC B64C2700/6216 (2) · CPC B64C1/12 (2) · CPC B64C1/061 (2)
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Showing below up to 36 results in range #1 to #36.

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