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发明名称
REPAIRING CONSTRUCTION FOR FOOT REST METAL FITTINGS IN MAN-HOLE, AND HOLE BORING DEVICE TO BE USED FOR THE CONSTRUCTION
摘要
申请公布号
JPH04216720(A)
申请公布日期
1992.08.06
申请号
JP19900402682
申请日期
1990.12.17
申请人
NIPPON HUME PIPE CO LTD;TOKYO METROPOLIS;TOUKIYOUTO GESUIDOU SAABISU KK;KONSETSUKU:KK
发明人
YOSHIKAWA HIROSHI;TAKENO YOSHIO;MATSUOKA SHIGEYUKI;SASAOKA SADAO;OKADA KUNIO
分类号
E02D29/12;E06C9/04
主分类号
E02D29/12
代理机构
代理人
主权项
地址
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