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发明名称
Apparatus for the manufacture of seamless hollow bodies
摘要
申请公布号
US2001902(A)
申请公布日期
1935.05.21
申请号
US19330674196
申请日期
1933.06.03
申请人
ENGELBERTZ WILLIAM H
发明人
ENGELBERTZ WILLIAM H.
分类号
B21K1/00
主分类号
B21K1/00
代理机构
代理人
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地址
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