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发明名称
Method of cleaning tubes and the like
摘要
申请公布号
US2254980(A)
申请公布日期
1941.09.02
申请号
US19370140570
申请日期
1937.05.03
申请人
SIMMONS CLYDE E
发明人
SIMMONS CLYDE E.
分类号
F01P11/06
主分类号
F01P11/06
代理机构
代理人
主权项
地址
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