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发明名称
Linear marking device
摘要
A linear marking device is provided comprising a ruled straight edge having transparent properties and constructed with a marking implement groove and unique surface gripping strip.
申请公布号
US4197649(A)
申请公布日期
1980.04.15
申请号
US19780927407
申请日期
1978.07.24
申请人
FLINN, JOSEPH B
发明人
FLINN, JOSEPH B
分类号
B43L7/00;(IPC1-7):B43L7/00;B43L13/00
主分类号
B43L7/00
代理机构
代理人
主权项
地址
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