Patent search ap:("CSF") AND inv:"DIDIER GRAULCAU" Page 1

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发明授权
Vacuum pump 失效
Title translation: 真空泵

公开(公告)号：US3207423A

公开(公告)日：1965-09-21

申请号：US21199162

申请日：1962-07-24

Applicant: CSF

Inventor： HARRY HUBER , DIDIER GRAULCAU

IPC: H01J7/18 , H01J41/12 , H01J41/16

CPC classification number: H01J41/16 , H01J7/18 , H01J41/12

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