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发明名称
PAPERBOARD SCORING DEVICE
摘要
申请公布号
US3443489(A)
申请公布日期
1969.05.13
申请号
USD3443489
申请日期
1967.06.01
申请人
LANGSTON CO.:THE
发明人
HARRY J. WATKINS
分类号
B31B1/25;(IPC1-7):B31B1/22
主分类号
B31B1/25
代理机构
代理人
主权项
地址
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