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公开(公告)号：US3129851A
公开(公告)日：1964-04-21
申请号：US16807162
申请日：1962-01-23
Applicant: SPERRY RAND CORP
Inventor： SEYMOUR SHAUN A , HOBBS JR WILLIAM , HELTSHU DANIEL C
IPC: A01K5/02
CPC classification number: A01K5/0258
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