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公开(公告)号：US3149979A
公开(公告)日：1964-09-22
申请号：US13773961
申请日：1961-09-13
Applicant: BOHN RALPH M , LEE WISEMAN ROBERT , JOHNSON CHARLES E
Inventor： BOHN RALPH M , LEE WISEMAN ROBERT , JOHNSON CHARLES E
IPC: A21D2/02
CPC classification number: A21D2/02
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公开(公告)号：US1900094A
公开(公告)日：1933-03-07
申请号：US27780028
申请日：1928-05-14
Applicant: BOHN RALPH M
Inventor： BOHN RALPH M
IPC: A21D2/18
CPC classification number: A21D2/186
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