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公开(公告)号：US2620990A
公开(公告)日：1952-12-09
申请号：US69560646
申请日：1946-09-09
Applicant: BECKMAN INSTRUMENTS INC
Inventor： CARY HENRY H , HAWES ROLAND C , STICKNEY MICHAEL E , GEORGE KENYON P
IPC: H01C17/04
CPC classification number: H01C17/04 , Y10T29/5102 , Y10T29/5186 , Y10T29/5187
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公开(公告)号：US2607899A
公开(公告)日：1952-08-19
申请号：US72203847
申请日：1947-01-14
Applicant: BECKMAN INSTRUMENTS INC
Inventor： CARY HENRY H , HAWES ROLAND C , GEORGE KENYON P
IPC: G01J3/42
CPC classification number: G01J3/42
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公开(公告)号：US2562525A
公开(公告)日：1951-07-31
申请号：US72203947
申请日：1947-01-14
Applicant: BECKMAN INSTRUMENTS INC
Inventor： CARY HENRY H
IPC: G01J3/42
CPC classification number: G01J3/42
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