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发明名称
Ventil
摘要
申请公布号
DE1030645(B)
申请公布日期
1958.05.22
申请号
DE1955V008928
申请日期
1955.05.20
申请人
JOH. VAILLANT K. G.
发明人
KEPPEL ERNST
分类号
F16K1/42
主分类号
F16K1/42
代理机构
代理人
主权项
地址
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