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发明名称
Retrieving tool
摘要
申请公布号
US2583476(A)
申请公布日期
1952.01.22
申请号
US19490109361
申请日期
1949.08.09
申请人
DAVIDSON RUSSELL E
发明人
DAVIDSON RUSSELL E.
分类号
A01K97/24
主分类号
A01K97/24
代理机构
代理人
主权项
地址
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