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Patents > CPCs: None & Number of text pages: 3-5 & Number of diagram pages: 3-4

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Office:
Inventors:
Erik Emanuel Lindkvist (2) · William Alfred South (2) · Charles Groombridge (2) · Hermann Hassenbach (2) · Boo Henning Wallin (2)
Inventor country:
Applicant person:
None (13) · William Alfred South (2) · Charles Groombridge (2) · Hermann Hassenbach (2) · Boo Henning Wallin (2)
Applicant is inventor:
Tech fields:
propulsion (22) · airplane (20) · frame (15) · design (13) · LTA (10) · stability (8) · flapping (8) · Propellers (8) · wings (7) · construction (7) · whole (7) · None (6) · marine (6) · subsystem (5) · control (5) · navigation (5)
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Related to aircraft:
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CPCs: (Click arrow to add another value)
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Citations from after 1930:
Number of text pages:
Number of diagram pages:

Showing below up to 74 results in range #1 to #74.

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