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发明名称
APPARATUS FOR DIFFUSING GAS INTO A LIQUID
摘要
申请公布号
CA855749(A)
申请公布日期
1970.11.10
申请号
CAD855749
申请日期
申请人
WATER POLLUTION CONTROL CORP.
发明人
PAUL M. THAYER
分类号
主分类号
代理机构
代理人
主权项
地址
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