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发明名称
PILFER PROOF AERATING DEVICE
摘要
申请公布号
CA641610(A)
申请公布日期
1962.05.22
申请号
CAD641610
申请日期
申请人
WRIGHTWAY ENGINEERING CO.
发明人
JOSEPH J. GOODRIE
分类号
主分类号
代理机构
代理人
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