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Article: Exit sign protection.(Brief Article)
- Article from:
- Security Management
- Article date:
- February 1, 2000
CopyrightCOPYRIGHT 2000 American Society for Industrial Security. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Safety Technology International, Inc., of Waterford, Michigan, has added the STI Exit Sign Damage Stopper to its line of steel wire guards. Designed to protect wall-mounted, lighted, glass exit signs against vandalism and accidental damage, the Stopper ...
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Article: Judge to enter ruling on patent for `exit' sign
Chicago Sun-Times;
June 27, 1988 ;
523 words
... ... companies has the right to a new kind of "exit" sign that lasts up to 570 years. Gilbert ... patent on an LED (light emitting diode) exit sign, invented by research engineer Norman ... rights. Barron maintained that an LED exit sign cannot be an invention because it is ...
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