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Patents > Inventor country: US & Family year: 1912 & Number of figures: 1-4

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Applicant person:
Louis John Bergdoll (3) · Johan Richard Froberg (2) · James P. Erie (2) · Matthew Arlington Batson (2) · Heinrich Podolsky (2) · Peter Pitcairn Carmichael (2)
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Tech fields:
airplane (11) · None (11) · navigation (6) · propeller (4) · control (4) · construction (3) · whole (3) · steering (3) · stability (3) · safety (3) · frame (3) · wings (3) · car (3)
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None (5)
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CPCs:
CPC B64C2700/6295 (5) · CPC B64C13/00 (5) · CPC B64C3/385 (4) · CPC B64C3/00 (2) · CPC B64C39/08 (2) · CPC B64C1/26 (2) · CPC Y10S244/903 (2) · CPC B64C27/006 (2) · CPC B64C39/062 (2) · CPC B64C25/60 (2)
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