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公开(公告)号：US2655734A
公开(公告)日：1953-10-20
申请号：US5814648
申请日：1948-11-03
Applicant: AMERICAN INSTR COMPANY
Inventor： OHLHEISER CARLTON E
IPC: G01N27/04
CPC classification number: G01N27/048 , F26B9/063 , F26B25/22 , F26B2200/06
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公开(公告)号：US2839644A
公开(公告)日：1958-06-17
申请号：US38649953
申请日：1953-10-16
Applicant: AMERICAN INSTR COMPANY
Inventor： OHLHEISER CARLTON E
IPC: G01N27/12
CPC classification number: G01N27/121
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公开(公告)号：US2834201A
公开(公告)日：1958-05-13
申请号：US38649853
申请日：1953-10-16
Applicant: AMERICAN INSTR COMPANY
Inventor： OHLHEISER CARLTON E
IPC: G01N33/10
CPC classification number: G01N33/10
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