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发明名称
EXCAVATING METHOD FOR BASE ROCK BY OIL PRESSURE TYPE CLAMSHELL BUCKET MOUNTED TO EXPANSION ARM AND BLOCK FOR CRUSH
摘要
申请公布号
JPS56105024(A)
申请公布日期
1981.08.21
申请号
JP19800007639
申请日期
1980.01.25
申请人
YORITOMI RIYUUTAROU
发明人
YORITOMI RIYUUTAROU
分类号
E02F3/47;E02F1/00
主分类号
E02F3/47
代理机构
代理人
主权项
地址
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