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发明名称
摘要
申请公布号
JPS4717834(Y1)
申请公布日期
1972.06.20
申请号
JP19700046415U
申请日期
1970.05.11
申请人
发明人
分类号
(IPC1-7):F16K13/00;F16K35/00;F16K51/00;F16L37/22;F16L37/28
主分类号
(IPC1-7):F16K13/00
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