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发明名称
Pipe bender
摘要
申请公布号
US2233292(A)
申请公布日期
1941.02.25
申请号
US19380229271
申请日期
1938.09.10
申请人
LEWIN JACOB W
发明人
LEWIN JACOB W.
分类号
B21D7/06
主分类号
B21D7/06
代理机构
代理人
主权项
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