发明名称 |
Screw driver |
摘要 |
|
申请公布号 |
US2513509(A) |
申请公布日期 |
1950.07.04 |
申请号 |
US19450611944 |
申请日期 |
1945.08.22 |
申请人 |
MORTS CHARLES N |
发明人 |
MORTS CHARLES N. |
分类号 |
B25B15/02 |
主分类号 |
B25B15/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|
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