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经营范围
发明名称
RAIL HOLE SWAGING MACHINE
摘要
申请公布号
US3572082(A)
申请公布日期
1971.03.23
申请号
USD3572082
申请日期
1967.12.05
申请人
W.E. & F. DOBSON LTD.
发明人
WILLIAM WOOLEY PAYNE
分类号
B21D28/24;E01B31/06;(IPC1-7):B21J9/12
主分类号
B21D28/24
代理机构
代理人
主权项
地址
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