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发明名称
MULTISTAGE EXTENSION ARM OF HYDRAULIC SHOVEL
摘要
申请公布号
JPS55152229(A)
申请公布日期
1980.11.27
申请号
JP19790058773
申请日期
1979.05.14
申请人
YORITOMI RIYUUTAROU
发明人
YORITOMI RIYUUTAROU
分类号
E02F3/39;E02F3/47
主分类号
E02F3/39
代理机构
代理人
主权项
地址
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