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发明名称
Absaugestutzen fuer Vakuumgefaess
摘要
申请公布号
DE843447(C)
申请公布日期
1952.07.07
申请号
DE1950S018846
申请日期
1950.08.30
申请人
SIEMENS-SCHUCKERTWERKE AKTIENGESELLSCHAFT
发明人
ENGELHARDT GEORG
分类号
H01J9/40
主分类号
H01J9/40
代理机构
代理人
主权项
地址
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