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发明名称
摘要
申请公布号
JPS4730254(Y1)
申请公布日期
1972.09.11
申请号
JP19690047965U
申请日期
1969.05.23
申请人
发明人
分类号
(IPC1-7):F16K17/04;F16K1/52;G05D7/00
主分类号
(IPC1-7):F16K17/04
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