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发明名称
Improvements in and relating to the grinding of screw threads
摘要
申请公布号
GB494986(A)
申请公布日期
1938.11.04
申请号
GB19370022693
申请日期
1937.08.18
申请人
FRANZ FOERG
发明人
分类号
B23G5/00
主分类号
B23G5/00
代理机构
代理人
主权项
地址
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