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发明名称
Improvements in or relating to screw-cutting diestocks
摘要
申请公布号
GB575082(A)
申请公布日期
1946.02.01
申请号
GB19440003616
申请日期
1944.02.28
申请人
ROBERT CALDWELL
发明人
分类号
B23G1/22
主分类号
B23G1/22
代理机构
代理人
主权项
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