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发明名称
Drafting machine
摘要
申请公布号
US1805740(A)
申请公布日期
1931.05.19
申请号
US19280327630
申请日期
1928.12.21
申请人
THE NATIONAL AUTOMATIC TOOL COMPANY
发明人
PETERS FREBERT J.
分类号
B43L13/00
主分类号
B43L13/00
代理机构
代理人
主权项
地址
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