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John Davis
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McKinney, TX, US
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last 30 patents
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Patent Grant
Safety cone and barrell placement and retrieval apparatus
Patent number
9,056,572
Issue date
Jun 16, 2015
NORTH TEXAS TOLLWAY AUTHORITY
Eric Hemphill
B60 - VEHICLES IN GENERAL
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last 30 patents
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Patent Application
SAFETY CONE AND BARRELL PLACEMENT AND RETRIEVAL APPARATUS
Publication number
20130156532
Publication date
Jun 20, 2013
NORTH TEXAS TOLLWAY AUTHORITY
Eric Hemphill
B60 - VEHICLES IN GENERAL