Invention Grant
US3457761A Method and apparatus for drawing and stretching a flat blank into a tubular shell
失效
用于绘制和拉伸扁平空白成为管状壳体的方法和装置
- Patent Title: Method and apparatus for drawing and stretching a flat blank into a tubular shell
- Patent Title (中): 用于绘制和拉伸扁平空白成为管状壳体的方法和装置
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Application No.: US3457761DApplication Date: 1967-03-20
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Publication No.: US3457761APublication Date: 1969-07-29
- Inventor: BROSSEIT FRITZ V
- Applicant: WESTERN ELECTRIC CO
- Assignee: Lucent Technologies Inc
- Current Assignee: Lucent Technologies Inc
- Priority: US62449567 1967-03-20
- Main IPC: B21D22/20
- IPC: B21D22/20 ; H01R43/16 ; B21D22/28 ; B21D28/32 ; B21D35/00
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