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经营范围
发明名称
Waermeaustauscher mit untereinander verbundenen Ringkanaelen
摘要
申请公布号
DE635970(C)
申请公布日期
1936.10.01
申请号
DE1934H140452D
申请日期
1934.06.21
申请人
DR. RICHARD WENZL;OTTO STEINBERG
发明人
分类号
F28D1/06
主分类号
F28D1/06
代理机构
代理人
主权项
地址
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