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发明名称
摘要
申请公布号
JPS63567(B2)
申请公布日期
1988.01.07
申请号
JP19800015963
申请日期
1980.02.14
申请人
WATANABE RYOTARO
发明人
WATANABE RYOTARO
分类号
E02D27/34;E02D27/44;E02D31/00;E02D31/08;E04H9/02
主分类号
E02D27/34
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代理人
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