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发明名称
Heating system
摘要
申请公布号
US2538964(A)
申请公布日期
1951.01.23
申请号
US19470766372
申请日期
1947.08.05
申请人
ALEX. FRIEDMANN
发明人
ETZELT HEINRICH;NEMETZ VALERIE
分类号
B41K1/32;B61D27/00
主分类号
B41K1/32
代理机构
代理人
主权项
地址
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