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经营范围
发明名称
PRODUCING INTERNAL GEAR
摘要
申请公布号
GB2200064(A)
申请公布日期
1988.07.27
申请号
GB19870029228
申请日期
1987.12.15
申请人
* HITACHI LTD
发明人
KAZUO * SAWAHATA;HISANOBU * KANAMARU
分类号
B21H5/02;B21D53/28;B21H5/00;B21H7/18;F16H1/10;(IPC1-7):B21H3/08
主分类号
B21H5/02
代理机构
代理人
主权项
地址
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