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发明名称
METHOD OF PROTECTING STRIPPER RUBBER FROM DAMAGE
摘要
申请公布号
JPS55136391(A)
申请公布日期
1980.10.24
申请号
JP19790041032
申请日期
1979.04.06
申请人
JAPAN METALS & CHEM CO LTD
发明人
MORI YOSHITAROU
分类号
E21B33/03
主分类号
E21B33/03
代理机构
代理人
主权项
地址
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