Patent search ap:("BELL TELEPHONE LABOR INC") AND inv:"HAVS CARROLL D" Page 1

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发明授权
Coin level indicator for coin operated apparatus 失效
Title translation: 硬币操作装置的硬币指示器

公开(公告)号：US3492428A

公开(公告)日：1970-01-27

申请号：US3492428D

申请日：1966-09-08

Applicant: BELL TELEPHONE LABOR INC

Inventor： HAVS CARROLL D , REDICK THOMAS E , STOKES REMBERT R

IPC: G07F9/06 , H04M17/02

CPC classification number: G07F9/06 , H04M17/02

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