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经营范围
发明名称
Water heater
摘要
申请公布号
US2024437(A)
申请公布日期
1935.12.17
申请号
US19340728850
申请日期
1934.06.04
申请人
DIRK EISINGA
发明人
EISINGA DIRK
分类号
F24H1/20
主分类号
F24H1/20
代理机构
代理人
主权项
地址
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