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发明名称
摘要
申请公布号
DE8904549(U1)
申请公布日期
1989.09.14
申请号
DE19890004549U
申请日期
1989.04.11
申请人
SCHMITZ, HEINRICH, 4150 KREFELD, DE
发明人
分类号
B23K31/02;F16L13/02
主分类号
B23K31/02
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