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发明名称
Drafting apparatus for producing three-plane drawings
摘要
申请公布号
US3128556(A)
申请公布日期
1964.04.14
申请号
US19620173492
申请日期
1962.02.15
申请人
HESS FRANK F;HESS FRANCIS A;HESS JOHN J
发明人
HESS FRANK F.;HESS FRANCIS A.;HESS JOHN J.
分类号
B43L13/14
主分类号
B43L13/14
代理机构
代理人
主权项
地址
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