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公开(公告)号:US1973545A
公开(公告)日:1934-09-11
申请号:US56286431
申请日:1931-09-15
Applicant: SPERRY DEV CO
Inventor: SPERRY EDWARD G
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公开(公告)号:US1688691A
公开(公告)日:1928-10-23
申请号:US55864322
申请日:1922-05-05
Applicant: SPERRY DEV CO
Inventor: DRAKE HARCOURT C , SPERRY ELMER A
IPC: B60L11/04
CPC classification number: B60L11/04 , Y02T10/70 , Y02T10/7077
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公开(公告)号:US1648968A
公开(公告)日:1927-11-15
申请号:US55678422
申请日:1922-04-26
Applicant: SPERRY DEV CO
Inventor: SPERRY ELMER A
IPC: F01P3/10
CPC classification number: F01P3/10
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公开(公告)号:US1600651A
公开(公告)日:1926-09-21
申请号:US38872920
申请日:1920-06-14
Applicant: SPERRY DEV CO
Inventor: SPERRY ELMER A
IPC: H02P9/06
CPC classification number: H02P9/06
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公开(公告)号:US1907014A
公开(公告)日:1933-05-02
申请号:US32232028
申请日:1928-11-28
Applicant: SPERRY DEV CO
Inventor: SPERRY ELMER A
IPC: B64C11/44
CPC classification number: B64C11/44
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公开(公告)号:US1803876A
公开(公告)日:1931-05-05
申请号:US53068722
申请日:1922-01-20
Applicant: SPERRY DEV CO
Inventor: SPERRY ELMER A
IPC: B60L15/38
CPC classification number: B60L15/38 , B60L2200/26
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公开(公告)号:US1788412A
公开(公告)日:1931-01-13
申请号:US53132922
申请日:1922-01-24
Applicant: SPERRY DEV CO
Inventor: SPERRY ELMER A
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公开(公告)号:US1763377A
公开(公告)日:1930-06-10
申请号:US68527124
申请日:1924-01-09
Applicant: SPERRY DEV CO
Inventor: SPERRY ELMER A
IPC: G01C13/00
CPC classification number: G01C13/008
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公开(公告)号:US1709377A
公开(公告)日:1929-04-16
申请号:US55678322
申请日:1922-04-26
Applicant: SPERRY DEV CO
Inventor: SPERRY ELMER A
CPC classification number: G01S1/02
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公开(公告)号:US1677305A
公开(公告)日:1928-07-17
申请号:US74209324
申请日:1924-10-07
Applicant: SPERRY DEV CO
Inventor: SPERRY ELMER A
CPC classification number: F01L5/06 , F02B2075/025
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