My grandfather Alec King
Check the hydraulic fluid. Hydraulic cylinder piston rubber washers to replace.
They work just like a hydraulic car jack. Just with a chair on top instead of a car.
It was said that Heinrich Girsberger invented the swivel office chair in the late 1800s.
1850
Archimedes invented it during his stay in Egypt.
hydraulic chair fully automatic
According to London's Science Museum, the American dentist Basil Wilkerson invented the adjustable hydraulic chair in 1877.
1892
adem langly
The barber chair as known today was invented around 1895. The first hydraulic chair was developed by the Koken company.
A "Dental Chair". Sorry, there isn't a fancy name for it.
long ago people used to have to sit on the floor at the dentist office and they had to stand to get their mouths looked at so some one didn't like having to stand and inveted to dental chair
In the stem of the chair.
Hydraulic oil.
electricity
Who is the person who invented the flying chair? Has the flying chair ever been invented?
the chair was invented in 200 B.C. OR B.C.E.