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发明名称
Method and machine for making noncumulative force springs
摘要
申请公布号
US3238754(A)
申请公布日期
1966.03.08
申请号
US19630280943
申请日期
1963.05.16
申请人
AMETEK, INC.
发明人
ALBRIGHT STANLEY L.;NACE ROBERT C.
分类号
B21F3/00;B21F23/00
主分类号
B21F3/00
代理机构
代理人
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地址
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