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发明名称
Insert holding device
摘要
申请公布号
US1987061(A)
申请公布日期
1935.01.08
申请号
US19340721559
申请日期
1934.04.20
申请人
GROSS PHOTO SUPPLY COMPANY
发明人
HATCH WILLIAM A.
分类号
A47G1/14
主分类号
A47G1/14
代理机构
代理人
主权项
地址
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