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Richard D. Roberts
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Elyria, OH, US
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last 30 patents
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Patent Grant
Wheel chair with rotatable tray
Patent number
5,299,824
Issue date
Apr 5, 1994
Richard D. Roberts
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Patent Grant
Hand held opening apparatus
Patent number
4,455,894
Issue date
Jun 26, 1984
Richard D. Roberts
B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...