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发明名称
WORKING METHOD OF BRITTLE MATERIAL
摘要
申请公布号
JPS56163046(A)
申请公布日期
1981.12.15
申请号
JP19800067087
申请日期
1980.05.22
申请人
KOMATSU MFG CO LTD
发明人
MURATA YOSHITO;OKAMOTO JIROU
分类号
B21J1/00
主分类号
B21J1/00
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代理人
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