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Patents > Applicant firm: None & Grant date: December 1920

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None (9) · Airplane (6) · propellers (6) · subsystem (5) · design (5) · wings (4) · frame (3) · aerial propeller (3) · buoyancy (2) · propulsion (2) · hydroaeroplane (2) · motors (2)
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CPCs:
CPC B64C17/00 (3) · CPC B64C13/00 (2) · CPC B64C3/00 (2) · CPC B64C11/04 (2) · CPC B64C35/00 (2) · CPC B64C2700/6212 (2)
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Showing below up to 33 results in range #1 to #33.

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