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发明名称
METAL ARTICLE PROTECTION
摘要
申请公布号
CA434506(A)
申请公布日期
1946.04.30
申请号
CAD434506
申请日期
申请人
PROTECTIVE METAL PROCESSING CO.
发明人
JOSEPH BLUMENFELD
分类号
主分类号
代理机构
代理人
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