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发明名称
Apparatus for forming barrel seams
摘要
申请公布号
US2779301(A)
申请公布日期
1957.01.29
申请号
US19510214937
申请日期
1951.03.10
申请人
GROTNES MACHINE WORKS, INC.
发明人
GROTNES CARL C.
分类号
B21D51/32
主分类号
B21D51/32
代理机构
代理人
主权项
地址
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