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发明名称
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摘要
申请公布号
CA485562(A)
申请公布日期
1952.08.12
申请号
CAD485562
申请日期
申请人
JOHN DOUGLAS HISEY
发明人
JOHN DOUGLAS HISEY
分类号
主分类号
代理机构
代理人
主权项
地址
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