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经营范围
发明名称
Drafting apparatus
摘要
申请公布号
US2208803(A)
申请公布日期
1940.07.23
申请号
US19380201412
申请日期
1938.04.11
申请人
CHARLES MORTON
发明人
MORTON CHARLES
分类号
D01H5/22
主分类号
D01H5/22
代理机构
代理人
主权项
地址
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