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发明名称
摘要
申请公布号
JPS5383802(U)
申请公布日期
1978.07.11
申请号
JP19760166479U
申请日期
1976.12.11
申请人
发明人
分类号
E02F9/22;E02F3/42;E02F9/20;(IPC1-7):E02F3/42
主分类号
E02F9/22
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代理人
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