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公开(公告)号：US3255042A
公开(公告)日：1966-06-07
申请号：US29125563
申请日：1963-06-28
Applicant: STALEY MFG CO A E
Inventor： SCHNELL ROBERT A , FRANK VERBANAC
IPC: C08B30/20
CPC classification number: C08B30/20
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