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发明名称
Air heater
摘要
申请公布号
US1776725(A)
申请公布日期
1930.09.23
申请号
US19300421440
申请日期
1930.01.17
申请人
RUDOLPH FROELICH
发明人
FROELICH RUDOLPH
分类号
F24H3/06
主分类号
F24H3/06
代理机构
代理人
主权项
地址
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