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发明名称
Automatic control means for maintaining constant liquid levels
摘要
申请公布号
US2343549(A)
申请公布日期
1944.03.07
申请号
US19410399411
申请日期
1941.06.23
申请人
ROLLAND GLASS COMPANY
发明人
GROGHAN ESTA C.
分类号
G05D9/12
主分类号
G05D9/12
代理机构
代理人
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地址
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