Class 248/155.3 - Slidable extensor

Subclass of Class 248 - Supports
Definition: Device in which the supporting arms are connected to the
No. of patents: 3
Last issue date: 06/05/1990

Number	Title	Issue Date
4930839	Single-legged chair A single-legged chair comprising a support post and a seat mounted on the support post at a predetermined position thereof so as to constitute a leg portion by a lower part of the support post below the seat, the general plane of the seat lying at an angl...	06/05/1990
4910927	Knee supporting crutch attachment An attachment for existing crutches includes a foldable mechanism having a knee supporting platform and which is shiftable from a horizontal use position, on the inside of a crutch, to a vertical stowed position. Provision is included for vertical adjustm...	03/27/1990
4062372	Articulated walking cane A walking cane fitted with three articulated struts that are each linked to a slidable spring-biased piston in the foot of the cane, and joined together so as to extend away from the foot of the cane when the piston is pushed against the ground and upward...	12/13/1977

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