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发明名称
APPLIANCE FOR THE ENRICHMENT OF WATER WITH OXYGEN, PARTICULARLY IN FISH BREEDING
摘要
申请公布号
CA801450(A)
申请公布日期
1968.12.17
申请号
CAD801450
申请日期
申请人
PETER VETTERLI
发明人
PETER VETTERLI
分类号
主分类号
代理机构
代理人
主权项
地址
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