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公开(公告)号:US2242874A
公开(公告)日:1941-05-20
申请号:US31350940
申请日:1940-01-12
Applicant: RCA CORP
Inventor: USSELMAN GEORGE L
IPC: G01R19/28
CPC classification number: G01R19/28
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公开(公告)号:US2194532A
公开(公告)日:1940-03-26
申请号:US15026937
申请日:1937-06-25
Applicant: RCA CORP
Inventor: USSELMAN GEORGE L
IPC: H03C3/28
CPC classification number: H03C3/28
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公开(公告)号:US2134065A
公开(公告)日:1938-10-25
申请号:US6125936
申请日:1936-01-29
Applicant: RCA CORP
Inventor: USSELMAN GEORGE L
IPC: H03C1/54
CPC classification number: H03C1/54
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公开(公告)号:US2111603A
公开(公告)日:1938-03-22
申请号:US6311536
申请日:1936-02-10
Applicant: RCA CORP
Inventor: USSELMAN GEORGE L
IPC: H03C3/16
CPC classification number: H03C3/16
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公开(公告)号:US2042748A
公开(公告)日:1936-06-02
申请号:US63395532
申请日:1932-09-20
Applicant: RCA CORP
Inventor: USSELMAN GEORGE L
IPC: H03C3/26
CPC classification number: H03C3/26
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公开(公告)号:US2036165A
公开(公告)日:1936-03-31
申请号:US61602632
申请日:1932-06-08
Applicant: RCA CORP
Inventor: USSELMAN GEORGE L
IPC: H03C3/26
CPC classification number: H03C3/26
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公开(公告)号:US2538543A
公开(公告)日:1951-01-16
申请号:US72088647
申请日:1947-01-08
Applicant: RCA CORP
Inventor: USSELMAN GEORGE L
IPC: H03C1/60
CPC classification number: H03C1/60
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公开(公告)号:US2536330A
公开(公告)日:1951-01-02
申请号:US60764545
申请日:1945-07-28
Applicant: RCA CORP
Inventor: USSELMAN GEORGE L
IPC: H03C3/10
CPC classification number: H03C3/10
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