Inventor

HEATON RICHARD D

US3 patents

Patents

3 patents

US4649397AMar 10, 1987

Theft deterrent tag

MONARCH MARKING SYSTEMS INC74 citations90

US4972198ANov 20, 1990

Multiple loop antenna

MONARCH MARKING SYSTEMS INC37 citations89

US4872018AOct 3, 1989

Multiple loop antenna

MONARCH MARKING SYSTEMS INC49 citations89