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经营范围
发明名称
Glow cathode
摘要
申请公布号
US2125105(A)
申请公布日期
1938.07.26
申请号
US19370136875
申请日期
1937.04.14
申请人
SIEMENS-SCHUCKERTWERKE AKTIENGESELLSCHAFT
发明人
ESPE WERNER
分类号
H01J1/15
主分类号
H01J1/15
代理机构
代理人
主权项
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HEADER
HAMMER CRUSHER
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METHOD AND DEVICE FOR CALCININGG OF GYPSUM UNDER PRESSURE
