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发明名称
Key-holding device
摘要
申请公布号
US1777929(A)
申请公布日期
1930.10.07
申请号
US19270176542
申请日期
1927.03.18
申请人
MCCAUL VERNE J
发明人
MCCAUL VERNE J.
分类号
A45C11/32
主分类号
A45C11/32
代理机构
代理人
主权项
地址
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