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发明名称
Verfahren zur Herstellung von Umkehrstuecken fuer Rohrstraenge von Waermeaustauschern
摘要
申请公布号
DE863642(C)
申请公布日期
1953.01.19
申请号
DE1949P034137
申请日期
1949.02.15
申请人
BENTELER-WERKE AKTIENGESELLSCHAFT
发明人
HILLEN ARNOLD
分类号
B21C37/28
主分类号
B21C37/28
代理机构
代理人
主权项
地址
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