发明名称 |
Die-set combination for making pin-back badges |
摘要 |
The present invention concerns a combination of mutually interfitting die and press-block elements adapted for manual use and operation with each other to produce a finished and permanent assembly of the separate components of a pin-back button or badge.
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申请公布号 |
US4299019(A) |
申请公布日期 |
1981.11.10 |
申请号 |
US19790024154 |
申请日期 |
1979.03.26 |
申请人 |
BADGE-A-MINT LTD. |
发明人 |
ROEBUCK, MALCOLM J. |
分类号 |
B21D53/48;(IPC1-7):B23P11/00 |
主分类号 |
B21D53/48 |
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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