Method of making a fastening device for visually indicating...

Metal working – Method of mechanical manufacture – Assembling or joining

Reexamination Certificate

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Details

C029S452000, C411S013000, C411S014000

Reexamination Certificate

active

07958614

ABSTRACT:
The present invention relates to fasteners and more specifically to a fastener adapted to visually indicate tension, and method of making thereof.

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“Seeing is Believing with Innovative Visual Tension Indicator”, Douglas Glenn Clark, InfraStructures, Aug. 2007, pp. 1-3.
SmartBolts, Direct Tension Indicating Fasteners, Stress Indicators, Inc., 2007, pp. 1-2.

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