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公开(公告)号:US2928828A
公开(公告)日:1960-03-15
申请号:US67313257
申请日:1957-07-22
Applicant: STALEY MFG CO A E
Inventor: SMITH CLIFFORD E , TUSCHHOFF JOHN V
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公开(公告)号:US2871147A
公开(公告)日:1959-01-27
申请号:US47098554
申请日:1954-11-24
Applicant: STALEY MFG CO A E
Inventor: SMITH CLIFFORD E
IPC: C13K1/08
CPC classification number: C13K1/08
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公开(公告)号:US2490716A
公开(公告)日:1949-12-06
申请号:US58559845
申请日:1945-03-30
Applicant: STALEY MFG CO A E
Inventor: SMITH CLIFFORD E , OLSON ELDRED K
IPC: C13K1/08
CPC classification number: C13K1/08
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