Patent search ap:("STAMICARBON") AND inv:"HAMELERS HENRICUS H M" Page 1

1.

发明授权
Signalling switch gear 失效
Title translation: 信号开关装置

公开(公告)号：US3228018A

公开(公告)日：1966-01-04

申请号：US22439262

申请日：1962-09-18

Applicant: STAMICARBON

Inventor： BENJAMINSEN JOSEPH M , HAMELERS HENRICUS H M

IPC: G08B21/00 , H02H3/44 , H04Q9/14

CPC classification number: G08B21/00 , H02H3/44 , H04Q9/14

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