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经营范围
发明名称
DEFECT-MARKING DEVICE
摘要
申请公布号
US3644934(A)
申请公布日期
1972.02.22
申请号
USD3644934
申请日期
1970.10.08
申请人
PPG INDUSTRIES INC.
发明人
CHARLES T. HAWKINS;LAVERNE O. PARKHILL
分类号
B43L13/02;G01N21/896;(IPC1-7):G01D15/16
主分类号
B43L13/02
代理机构
代理人
主权项
地址
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