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公开(公告)号：US2676632A
公开(公告)日：1954-04-27
申请号：US11574849
申请日：1949-09-14
Applicant: BENNER NAWMAN INC
Inventor： HOOK BENTON A , NAWMAN ROLLIE B
IPC: A23N7/00
CPC classification number: A23N7/00
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