Inventor

FENNER RICHARD G

US3 patents

Patents

3 patents

US5874899AFeb 23, 1999

Tank level gauge and sensor head therefor

MIDLAND MFG CORP46 citations88

US5194747AMar 16, 1993

Liquid level gauge comparing moldulations of incident and reflected loser beams

MIDLAND MFG CORP69 citations88

US5904870AMay 18, 1999

Laser lens heater

MIDLAND MFG CORP10 citations69