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发明名称
摘要
申请公布号
JPS53137332(U)
申请公布日期
1978.10.30
申请号
JP19770043388U
申请日期
1977.04.05
申请人
发明人
分类号
F16K1/22;(IPC1-7):F16K1/22
主分类号
F16K1/22
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代理人
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地址
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