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Portable wheelchair
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Patent number 5,669,619
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Issue date Sep 23, 1997
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Il Yoo Kim
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B60 - VEHICLES IN GENERAL
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Wheelchair brake
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Patent number 5,492,355
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Issue date Feb 20, 1996
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Theodore M. Berry
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Wheelchair brake
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Patent number 5,280,938
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Issue date Jan 25, 1994
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Theodore M. Berry
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Folding wheelchair with rigid seat
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Patent number 5,145,197
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Issue date Sep 8, 1992
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Contemporary Medical Equipment Corp.
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Armand Gatti
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Auxiliary drive for vehicles
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Patent number 5,078,227
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Issue date Jan 7, 1992
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S. A. E. Akikim
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Arie Becker
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Dynamic brake for manual wheelchair
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Patent number 4,537,415
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Issue date Aug 27, 1985
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Georgia Tech Research Institute
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Ronald D. Delahoussaye
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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3912032
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Patent number 3,912,032
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Issue date Oct 14, 1975
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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3869146
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Patent number 3,869,146
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Issue date Mar 4, 1975
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE