Patent search ap:("INT STANDARD ELECTRIC CORP") AND inv:"HINTON RAYMOND C P" Page 1

1.

发明授权
Party line electrical communication systems 失效
Title translation: 派对电气通信系统

公开(公告)号：US2868869A

公开(公告)日：1959-01-13

申请号：US52265455

申请日：1955-07-18

Applicant: INT STANDARD ELECTRIC CORP

Inventor： HINTON RAYMOND C P , WILLIAM WARDEN FREDERICK

IPC: H04L12/40

CPC classification number: H04L12/40

Patent Agency Ranking