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发明名称
Work position sensing means which renders tool inoperative in the event of improperly positioned work
摘要
申请公布号
US2986254(A)
申请公布日期
1961.05.30
申请号
US19570655899
申请日期
1957.04.29
申请人
WESTERN ELECTRIC COMPANY, INCORPORATED
发明人
BORKE LARS O.
分类号
B21D43/02;B23D33/00
主分类号
B21D43/02
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代理人
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