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Cynthia Reed
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Shueyville, IA, US
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last 30 patents
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Patent Grant
Powered handle bar apparatus for staircase, ramp or level walk area...
Patent number
10,188,578
Issue date
Jan 29, 2019
Mark William Hefron
B66 - HOISTING LIFTING HAULING
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last 30 patents
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Patent Application
Powered Handle Bar Apparatus for Staircase, Ramp or Level Walk Area...
Publication number
20180055714
Publication date
Mar 1, 2018
Mark William Hefron
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE