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发明名称
BREAKING AND DIGGING CONSTRUCTION OF EMBEDDED PIPE
摘要
申请公布号
JPS60168980(A)
申请公布日期
1985.09.02
申请号
JP19840021816
申请日期
1984.02.10
申请人
NIHON KOUKAN KOUJI KK
发明人
MURAKAMI TADANOBU;KATSUKI MAKOTO;FUJII MITSURU;HAYASHI TAKESHI;MORI TOSHIKAZU
分类号
B23D21/14;F16L1/024
主分类号
B23D21/14
代理机构
代理人
主权项
地址
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