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发明名称
CONSTRUCTION OF SLIT
摘要
申请公布号
JPS60181488(A)
申请公布日期
1985.09.17
申请号
JP19840035971
申请日期
1984.02.29
申请人
YOSHIZAWA SETSUKAI KOGYO KK
发明人
HANADA MITSUO
分类号
E21C37/26;E21C37/00
主分类号
E21C37/26
代理机构
代理人
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地址
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