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发明名称
Transparent mounting device
摘要
申请公布号
US1968674(A)
申请公布日期
1934.07.31
申请号
US19330685798
申请日期
1933.08.19
申请人
ENGEL ALBERT W
发明人
ENGEL ALBERT W.
分类号
A47G1/06
主分类号
A47G1/06
代理机构
代理人
主权项
地址
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