| 发明名称 |
Extrusion preparation apparatus |
| 摘要 |
Multiflanged extrusion preparation apparatus including means by which multiflanged elongated extrusions are aligningly fed to punch press operated dies which notch, trim, and otherwise prepare the extrusions for use in assembling and installing of fiberboard air handling ducts.
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| 申请公布号 |
US3938413(A) |
申请公布日期 |
1976.02.17 |
| 申请号 |
US19740496567 |
申请日期 |
1974.08.12 |
| 申请人 |
GOETTEL, ROBERT J.;GOETTEL, RICHARD J.;SMITH, WILLIS D. |
发明人 |
GOETTEL, ROBERT J.;GOETTEL, RICHARD J.;SMITH, WILLIS D. |
| 分类号 |
B21D28/24;B26F1/12;(IPC1-7):B26D7/06 |
主分类号 |
B21D28/24 |
| 代理机构 |
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代理人 |
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| 地址 |
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