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经营范围
发明名称
Drafting machine
摘要
申请公布号
US2462271(A)
申请公布日期
1949.02.22
申请号
US19440555269
申请日期
1944.09.22
申请人
HENRY LITTLE CHARLES;HUBBARD LITTLE CHARLES
发明人
LITTLE CHARLES HENRY;LITTLE CHARLES HUBBARD
分类号
B43L13/06
主分类号
B43L13/06
代理机构
代理人
主权项
地址
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