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2. Walker (mobility) - Wikipedia

   en.wikipedia.org/wiki/Walker_(mobility)

   A different approach to the walker is the rollator, also called wheeled walker, invented by the Swede Aina Wifalk in 1978. Wifalk had polio . [ 9 ] [ 10 ] Although originally a brand name, "rollator" has become a genericized trademark for wheeled walkers in many countries, and is also the most common type of walker in several European countries.

3. Knee scooter - Wikipedia

   en.wikipedia.org/wiki/Knee_scooter

   It is known by many other names, including knee coaster, knee cruiser, knee caddy, orthopaedic scooter, or leg walker. [ 1 ] Over the years, it has taken on many forms—from small-wheeled devices suitable for indoor use, to larger, sturdier units capable of use outside on grass or paved surfaces.

4. Walking vehicle - Wikipedia

   en.wikipedia.org/wiki/Walking_vehicle

   A quadruped walker, the General Electric Walking truck, on display at the U.S. Army Transportation Museum. A walking vehicle is a vehicle that moves on legs rather than wheels or tracks. Walking vehicles have been constructed with anywhere from one to more than eight legs.

5. Wheelchair - Wikipedia

   en.wikipedia.org/wiki/Wheelchair

   Some walkers can be used as a wheelchair. These walkers have seat and foot plates, so an attendant can push while the patient is sitting on the walker. This is useful for a person who gets tired while walking with a walker, or has a limited walking range meaning the person can walk, but after a while, the person will collapse and fall to the ...

6. White cane - Wikipedia

   en.wikipedia.org/wiki/White_cane

   A folding support cane While the white cane is commonly accepted as a "symbol of blindness", different countries still have different rules concerning what constitutes a "cane for the blind". In the United Kingdom, the white cane indicates that the individual has a visual impairment but normal hearing; with red bands added, it indicates that ...

7. Fifth wheel (Brooks Walker) - Wikipedia

   en.wikipedia.org/wiki/Fifth_wheel_(Brooks_Walker)

   In the 1930s, Walker invented a device which added a fifth wheel to cars to aid parallel parking. The extra wheel was mounted on the rear of the vehicle, at right angles to the rest of the wheels. When in use, the fifth wheel lifted the back of the car off its normal rear wheels, allowing the rear of the car to swing laterally.