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Henrickson; Sarah E.
Takoma Park, MD
No. of patents:

Patent Number Title Of Patent Date Issued
5845746 Wheelchair dynamic braking system December 8, 1998
An automatic braking system for wheelchairs which prevents rearward, downhill motion of wheelchairs while having no effect on horizontal or uphill motion. The braking system is made up of circular ratcheted plates which are attached to the axles of the driving wheels of the wheelchair

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