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经营范围
发明名称
Spring assembling apparatus
摘要
申请公布号
US1993189(A)
申请公布日期
1935.03.05
申请号
US19340731420
申请日期
1934.06.20
申请人
L. A. YOUNG SPRING AND WIRE CORPORATION
发明人
STACKHOUSE GEORGE A.
分类号
B21F33/04
主分类号
B21F33/04
代理机构
代理人
主权项
地址
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