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Graham; Jeannell
Waldorf, MD
No. of patents:

Patent Number Title Of Patent Date Issued
7557694 Vehicle tire tread depth determining system July 7, 2009
A vehicle tire tread depth determining system includes an annular member embedded beneath an outer surface, and disposed beneath a tread layer, of a vehicle tire. The member has photo-chromatic properties that change color when exposed to ultraviolet light. The member also has a body

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