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发明名称
BACK VALVE
摘要
申请公布号
GR64963(B)
申请公布日期
1980.06.10
申请号
GR19857801576
申请日期
1978.11.20
申请人
SCHULTZ GMBH AURORA
发明人
分类号
B60H1/00
主分类号
B60H1/00
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代理人
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