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公开(公告)号：US1748650A
公开(公告)日：1930-02-25
申请号：US37445229
申请日：1929-06-28
Applicant: SEIBERLING LATEX PRODUCTS COMP
Inventor： HOLLENBECK OSCAR D
IPC: F02P7/04
CPC classification number: F02P7/04
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