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经营范围
发明名称
Boiler cleaner
摘要
申请公布号
US1840545(A)
申请公布日期
1932.01.12
申请号
US19300471833
申请日期
1930.07.30
申请人
DIAMOND POWER SPECIALTY CORPORATION
发明人
THOMAS WILLIS P.
分类号
F28G1/16
主分类号
F28G1/16
代理机构
代理人
主权项
地址
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