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发明名称
摘要
申请公布号
JPS49107806(U)
申请公布日期
1974.09.13
申请号
JP19730003606U
申请日期
1972.12.29
申请人
发明人
分类号
E04B1/61;(IPC1-7):E04B1/40
主分类号
E04B1/61
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代理人
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