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发明名称
PERMANENT ARC SHIELD
摘要
申请公布号
US3555238(A)
申请公布日期
1971.01.12
申请号
USD3555238
申请日期
1967.04.26
申请人
OMARK INDUSTRIES INC.
发明人
ELLIOTT J. FAY;RALPH K. RITTER
分类号
B23K9/20;(IPC1-7):B23K9/20
主分类号
B23K9/20
代理机构
代理人
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地址
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