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经营范围
发明名称
Grooving machine
摘要
申请公布号
US2822775(A)
申请公布日期
1958.02.11
申请号
US19530380413
申请日期
1953.09.16
申请人
JACOB JACOBSON
发明人
JACOBSON JACOB
分类号
B21D51/28
主分类号
B21D51/28
代理机构
代理人
主权项
地址
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