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发明名称
摘要
申请公布号
JPS50713(B1)
申请公布日期
1975.01.10
申请号
JP19690025837
申请日期
1969.04.02
申请人
发明人
分类号
F15B9/08;F15B9/00;(IPC1-7):F15B9/00
主分类号
F15B9/08
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代理人
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