Improvements in or relating to a high vacuum pumping device,申请号GB19540027733-传众专利搜索

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发明名称	Improvements in or relating to a high vacuum pumping device
摘要
申请公布号	GB746365(A)	申请公布日期	1956.03.14
申请号	GB19540027733	申请日期	1954.09.24
申请人	SIEMENS-SCHUCKERTWERKE AKTIENGESELLSCHAFT	发明人
分类号	F04F9/04	主分类号	F04F9/04
代理机构		代理人
主权项
地址

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