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Patents > Grant date: 1920 - 1929 & IPCs: None & Number of claims: 6-50000000

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None (21) · New York state (5) · New York county (3) · New York City (2) · Michigan (2) · Pennsylvania (2) · Chicago (2) · Ohio (2) · Budapest (2) · New York (2)
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Tech fields:
airplane (20) · frame (9) · design (8) · fuselage (7) · stability (7) · construction (7) · propellers (7) · wings (6) · propeller (5) · subsystem (5) · metal (4) · aerodynamics (4) · rudder (3) · flapping (3) · HTA (3) · aileron (3) · biplane (3) · military (3) · motors (3)
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