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发明名称
Stock pen
摘要
申请公布号
US1807188(A)
申请公布日期
1931.05.26
申请号
US19280296702
申请日期
1928.08.01
申请人
WITTEN WILLIAM S
发明人
WITTEN WILLIAM S.
分类号
A01K1/00
主分类号
A01K1/00
代理机构
代理人
主权项
地址
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