Patent search ap:("ROGER PREUX") AND inv:"PREUX ROGER" Page 1

1.

发明授权
Rotary electric contactors of the point-contact type 失效
Title translation: 点接触式旋转电动接触器

公开(公告)号：US3423555A

公开(公告)日：1969-01-21

申请号：US3423555D

申请日：1967-04-20

Applicant: ROGER PREUX

Inventor： PREUX ROGER

IPC: H01H1/16 , H01H3/40 , H01H19/56 , H01H3/00

CPC classification number: H01H3/40 , H01H1/16 , H01H19/56

Patent Agency Ranking