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公开(公告)号:US1997600A
公开(公告)日:1935-04-16
申请号:US63870132
申请日:1932-10-20
Applicant: AUTOGIRO CO OF AMERICA
Inventor: PITCAIRN HAROLD F
IPC: B64C27/02
CPC classification number: B64C27/021
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公开(公告)号:US2588570A
公开(公告)日:1952-03-11
申请号:US70699646
申请日:1946-10-31
Applicant: AUTOGIRO CO OF AMERICA
Inventor: PITCAIRN HAROLD F
IPC: B64C27/473 , F01D5/28
CPC classification number: B64C27/473 , B64C2027/4736 , F01D5/282 , Y02T50/672 , Y02T50/673 , Y10T156/1031
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公开(公告)号:US2440758A
公开(公告)日:1948-05-04
申请号:US58178945
申请日:1945-03-09
Applicant: AUTOGIRO CO OF AMERICA
Inventor: PITCAIRN HAROLD F
IPC: B64F1/04
CPC classification number: B64F1/04
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公开(公告)号:US2440292A
公开(公告)日:1948-04-27
申请号:US53424644
申请日:1944-05-05
Applicant: AUTOGIRO CO OF AMERICA
Inventor: PITCAIRN HAROLD F , STANLEY PAUL H
IPC: F42B10/58
CPC classification number: F42B10/58
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公开(公告)号:US2407327A
公开(公告)日:1946-09-10
申请号:US43592542
申请日:1942-03-24
Applicant: AUTOGIRO CO OF AMERICA
Inventor: PITCAIRN HAROLD F
IPC: B64C27/82
CPC classification number: B64C27/82 , B64C2027/8236 , B64C2027/8272
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公开(公告)号:US2402294A
公开(公告)日:1946-06-18
申请号:US45000842
申请日:1942-07-07
Applicant: AUTOGIRO CO OF AMERICA
Inventor: PITCAIRN HAROLD F
CPC classification number: B64C27/82
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公开(公告)号:US2352404A
公开(公告)日:1944-06-27
申请号:US45000942
申请日:1942-07-07
Applicant: AUTOGIRO CO OF AMERICA
Inventor: PITCAIRN HAROLD F
IPC: B64C27/02
CPC classification number: B64C27/021
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公开(公告)号:US2352342A
公开(公告)日:1944-06-27
申请号:US36399740
申请日:1940-11-02
Applicant: AUTOGIRO CO OF AMERICA
Inventor: PITCAIRN HAROLD F
IPC: B64C27/02
CPC classification number: B64C27/021
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公开(公告)号:US2350126A
公开(公告)日:1944-05-30
申请号:US42152941
申请日:1941-12-04
Applicant: AUTOGIRO CO OF AMERICA
Inventor: PITCAIRN HAROLD F
IPC: B64C27/82
CPC classification number: B64C27/82
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公开(公告)号:US2169849A
公开(公告)日:1939-08-15
申请号:US18392538
申请日:1938-01-08
Applicant: AUTOGIRO CO OF AMERICA
Inventor: PITCAIRN HAROLD F
IPC: B64C27/02
CPC classification number: B64C27/023 , Y10T403/32319 , Y10T403/32606 , Y10T403/454
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