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发明名称
Verfahren zur Herstellung duennwandiger nahtloser Rohre
摘要
申请公布号
DE870539(C)
申请公布日期
1953.03.16
申请号
DE1950W004449
申请日期
1950.11.05
申请人
WESTDEUTSCHE MANNESMANNROEHREN AKTIENGESELLSCHAFT
发明人
PETERSEN ULRICH DIPL.-ING.
分类号
B21C1/22
主分类号
B21C1/22
代理机构
代理人
主权项
地址
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