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发明名称
摘要
申请公布号
JPS50147217(U)
申请公布日期
1975.12.06
申请号
JP19740058879U
申请日期
1974.05.22
申请人
发明人
分类号
F17C9/00;F17C7/00;F17C13/00;(IPC1-7):F17C13/00
主分类号
F17C9/00
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代理人
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