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发明名称
摘要
申请公布号
JPH0653672(U)
申请公布日期
1994.07.22
申请号
JP19920070151U
申请日期
1992.09.11
申请人
发明人
分类号
E03D3/08;F16K21/04;(IPC1-7):E03D3/08
主分类号
E03D3/08
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代理人
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