Cairns & Brother Inc.

Jeffrey N Olsen

Lawrence H Zuckerman

Kurt P Schuler

Robert E Gray

Robert M Armstrong

Robert J Richter

A generally hands-free, voice communication system in combination with a head-protective helmet. The helmet protects the wearer's head and the communications system permits voice communications between journeyman personnel, e.g. firefighters, police, military, industrial, hazardous material handling personnel, in relatively close proximity with each other and between journeymen and a group leader; and the group leader's communication system to also permit relatively long-range communication between the group leader and a relatively distant communications center such as a fire engine or distant fire company, base station or repeater.

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Newark, DE, United States of America

Jeffrey N Olsen