Inventor

KEIGHTLEY JOHN H

CA3 patents

⚠️ This page may combine multiple inventors who share the name “KEIGHTLEY JOHN H”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PTHALO SYSTEMS INC

1 patent

US5363217ANov 8, 1994

Image transfer system

PTHALO SYSTEMS INC12 citations61

PRODUCTION ARTS LIGHTING INC

1 patent

US4974959ADec 4, 1990

Slide projector

PRODUCTION ARTS LIGHTING INC2 citations48

POLAROID CORP

1 patent

US4556306ADec 3, 1985

Film processing apparatus including a vacuum pickup head for a film processing fluid container

POLAROID CORP0 citations37