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公开(公告)号：US2637996A
公开(公告)日：1953-05-12
申请号：US4837548
申请日：1948-09-09
Applicant: PAPER CHEMISTRY INST
Inventor： MCKEE ROBERT C , SEARS GEORGE R
IPC: G01N3/00
CPC classification number: G01N3/00
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公开(公告)号：US2498844A
公开(公告)日：1950-02-28
申请号：US76901647
申请日：1947-08-16
Applicant: PAPER CHEMISTRY INST
Inventor： SEARS GEORGE R , RAE ROBERT D , DEN AKKER JOHANNES A VAN
IPC: G01N3/30
CPC classification number: G01N3/30
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