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公开(公告)号：US1658957A
公开(公告)日：1928-02-14
申请号：US15602526
申请日：1926-12-20
Applicant: WHITNEY HARRY L , WYANT ROSS E
Inventor： WHITNEY HARRY L , WYANT ROSS E
IPC: A01K55/00
CPC classification number: A01K55/00
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