Inventor

WALTERS RICHARD G

2 patents

Patents

2 patents

US4022619AMay 10, 1977

Composite developer-etch composition for chromium-plated lithographic printing plates

PRINTING DEV INC4 citations54

US4049453ASep 20, 1977

Composite developer-etch composition for chromium-plated lithographic printing plates

PRINTING DEV INC1 citations43