发明名称 |
SPIRAL-RECHENSCHEIBE. |
摘要 |
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申请公布号 |
DE1660051(U) |
申请公布日期 |
1953.07.30 |
申请号 |
DE195300O1787U |
申请日期 |
1953.06.01 |
申请人 |
HEINZ OVERBECK |
发明人 |
HEINZ OVERBECK |
分类号 |
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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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