发明名称 |
Brooch-fastening device |
摘要 |
|
申请公布号 |
US1752858(A) |
申请公布日期 |
1930.04.01 |
申请号 |
US19290384976 |
申请日期 |
1929.08.10 |
申请人 |
SIEFKEN GUSTAVUS A |
发明人 |
SIEFKEN GUSTAVUS A. |
分类号 |
A44B9/18 |
主分类号 |
A44B9/18 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|
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