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发明名称
Leader keeper
摘要
申请公布号
US2602258(A)
申请公布日期
1952.07.08
申请号
US19510245733
申请日期
1951.09.08
申请人
ELKO WILLIAM E
发明人
ELKO WILLIAM E.
分类号
A01K97/06
主分类号
A01K97/06
代理机构
代理人
主权项
地址
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