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Patents > Year granted: 1919 & Citations from after 1930: None & Number of claims: 2

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Inventors:
None (22) · Harold Arthur Savage (5) · Walter George Tarrant (4) · Reinhold Richter (3) · George Henry Challenger (3) · Hjalmar Pålson (2) · Dane Hurlburt (2) · Robert Gastambide (2)
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Tech fields:
airplane (32) · construction (13) · Frame (11) · subsystem (10) · design (9) · military (8) · stability (8) · airship (7) · propellers (7) · Control (6) · fuselage (5) · propulsion (5) · Wings (5) · LTA (4) · motors (4) · safety (4) · Aerodynamics (3) · motor (3)
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CPCs:
None (26) · CPC B64C17/00 (3) · CPC F41A19/05 (3) · CPC B64C3/26 (3) · CPC B64C13/00 (3) · CPC B64D17/00 (2) · CPC B64C39/04 (2) · CPC B64C3/385 (2) · CPC B64C2700/6256 (2) · CPC B64C2700/6212 (2) · CPC B64C3/00 (2) · CPC B64C1/065 (2)
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