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经营范围
发明名称
Pipe bending machine
摘要
申请公布号
US3335588(A)
申请公布日期
1967.08.15
申请号
US19640409484
申请日期
1964.11.06
申请人
CRUTCHER-ROLFS-CUMMINGS, INC.
发明人
CUMMINGS ERNEST E.
分类号
B21D7/022
主分类号
B21D7/022
代理机构
代理人
主权项
地址
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