Patent search ap:("BELL TELEPHONE LABOR INC") AND inv:"LANE WILLIAM L" Page 1

1.

发明授权
Level detector having visual indicator lock-up means 失效
Title translation: 具有视觉指示器锁定装置的液位探测器

公开(公告)号：US3510771A

公开(公告)日：1970-05-05

申请号：US3510771D

申请日：1967-11-15

Applicant: BELL TELEPHONE LABOR INC

Inventor： EMBREE MILTON L , LANE WILLIAM L

IPC: G01R19/165 , G01R13/36 , H03K19/08

CPC classification number: G01R19/16576

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