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发明名称
SPHERICAL FACE FORMING METHOD OF END FACE OF SCREW BLANK MATERIAL
摘要
申请公布号
JPS5641041(A)
申请公布日期
1981.04.17
申请号
JP19790115744
申请日期
1979.09.11
申请人
TOYOTA MOTOR CO LTD
发明人
OBARA MASAMI;SUZUKI TAKAMITSU
分类号
B21J5/06;B21K1/46
主分类号
B21J5/06
代理机构
代理人
主权项
地址
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