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发明名称
Vorrichtung zum Zentrieren von Flanschen in Rohren
摘要
申请公布号
DE906286(C)
申请公布日期
1954.03.11
申请号
DE1951G007514
申请日期
1951.11.28
申请人
ERWIN GRUB
发明人
GRUB ERWIN
分类号
B23K37/053
主分类号
B23K37/053
代理机构
代理人
主权项
地址
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