| 发明名称 |
Film severing method and apparatus |
| 摘要 |
A film severing method and apparatus is provided in which a film having first and second edges is engaged by film holding devices and the film is severed in a transverse path between such holding devices while the film is held on either side thereby, such severing including:
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| 申请公布号 |
US4030388(A) |
申请公布日期 |
1977.06.21 |
| 申请号 |
US19760686507 |
申请日期 |
1976.05.14 |
| 申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
RAMSEY, HAROLD EUGENE |
| 分类号 |
B26D1/45;B29C65/78;B65B11/50;B65B31/02;B65B61/06;(IPC1-7):B26D1/26 |
主分类号 |
B26D1/45 |
| 代理机构 |
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代理人 |
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