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3889964
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Information
Patent Grant
3889964
References
Source
Patent Number
3,889,964
Date Filed
Not available
Date Issued
Tuesday, June 17, 1975
48 years ago
CPC
A61G5/1029 - engaging a surface
A61G3/0808 - Accommodating or securing wheelchairs
A61G5/101 - of the parking brake type
A61G5/1013 - engaging the wheel
A61G5/1035 - manipulated by wheelchair user
A61G5/1037 - manipulated by assisting person
A61G5/1008 - for gradually slowing down the wheelchair
B62B5/049 - locking against movement by contacting the floor or a wall
US Classifications
280 - Land vehicles
248 - Supports
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