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发明名称
INSTRUMENT FOR DRAFTING BOARD TABLE
摘要
申请公布号
US3551958(A)
申请公布日期
1971.01.05
申请号
USD3551958
申请日期
1968.09.17
申请人
ROMAN J. BELTER
发明人
ROMAN J. BELTER
分类号
B43L5/02;(IPC1-7):B42F1/00;G01B3/06
主分类号
B43L5/02
代理机构
代理人
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地址
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