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发明名称
BATTERY-OPERATED PUMPING UNIT FOR GAS ANALYSIS
摘要
申请公布号
CA810899(A)
申请公布日期
1969.04.22
申请号
CAD810899
申请日期
申请人
MINE SAFETY APPLIANCES COMPANY
发明人
JAMES H. BEPLER;EARL M. BECKER
分类号
主分类号
代理机构
代理人
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