| 发明名称 |
APPARATUS FOR MANUFACTURING PERFORATED TUBES |
| 摘要 |
A method and a machine for manufacturing draining tubes of synthetic resin with a perforated wall. The tube wall is provided with hollow projections on the wall and said projections are cut off by cutting tools which are rotating round the tube when the tube is fed axially through a cutting machine.
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| 申请公布号 |
US3868876(A) |
申请公布日期 |
1975.03.04 |
| 申请号 |
US19730411724 |
申请日期 |
1973.11.01 |
| 申请人 |
NORDSTROM, ERIK GUSTAV WENDEL |
发明人 |
NORDSTROM, ERIK GUSTAV WENDEL |
| 分类号 |
B23B5/00;B26F1/00;(IPC1-7):B23B21/00 |
主分类号 |
B23B5/00 |
| 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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