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公开(公告)号：US2517937A
公开(公告)日：1950-08-08
申请号：US3923748
申请日：1948-07-17
Applicant: STANTON AUSTIN N
Inventor： STANTON AUSTIN N
IPC: A01K97/10
CPC classification number: A01K97/10 , Y10T403/7147
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