Inventor

NEWTON JOHN P

US3 patents

Patents

3 patents

US6323948B2Nov 27, 2001

Light sensor for web-guiding apparatus

FIFE CORP42 citations89

US6289729B1Sep 18, 2001

Ultrasonic sensor for web-guiding apparatus

FIFE CORP33 citations89

US6175419B1Jan 16, 2001

Light sensor for web-guiding apparatus

FIFE CORP21 citations89