发明名称 |
Mekanisk Blyant. |
摘要 |
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申请公布号 |
DK57297(C) |
申请公布日期 |
1940.02.19 |
申请号 |
DKD57297 |
申请日期 |
1937.06.17 |
申请人 |
THE WAHL COMPANY |
发明人 |
|
分类号 |
|
主分类号 |
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代理机构 |
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代理人 |
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主权项 |
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地址 |
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