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公开(公告)号：US2816179A
公开(公告)日：1957-12-10
申请号：US42141754
申请日：1954-04-06
Applicant: BOSCH ARMA CORP
Inventor： RALPH GITTLEMAN , JACOB TELLERMAN
IPC: H03F1/30
CPC classification number: H03F1/302
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公开(公告)号：US2850699A
公开(公告)日：1958-09-02
申请号：US40890854
申请日：1954-02-08
Applicant: BOSCH ARMA CORP
Inventor： DAVIDSON GARETH M , RALPH GITTLEMAN
IPC: G01R31/26
CPC classification number: G01R31/2614
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