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公开(公告)号：US2506283A
公开(公告)日：1950-05-02
申请号：US66946846
申请日：1946-05-13
Applicant: CALIFORNIA RESEARCH CORP
Inventor： SMITH VAUGHN R , SCHMITZ CHARLES G
IPC: C10C3/02
CPC classification number: C10C3/023
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