发明名称 Vacuum equipment with a sluice for a unit - for working constructural element in
摘要 The vacuum equipment with a pressure-stage assembly consists of discrete chambers inter-connected by through-flow orifices fitted with glands. Only one pressure-stage assembly is located in the vacuum equipment, which is designed such that the material is passed in and out of the chamber, and through the assembly, in a continuous sequence.
申请公布号 DE1937007(A1) 申请公布日期 1971.01.28
申请号 DE19691937007 申请日期 1969.07.21
申请人 SIEMENS AG 发明人 JOACHIM GRAMBOW,DIPL.-CHEM.
分类号 H01J29/86;H01J37/18 主分类号 H01J29/86
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