Office chair with spring-loaded pivoted armrests has coil spring acting between each armrest and retaining pin attached to armrest support at distance from vertical pivot axis
DE10119017C1
Office chair with pivoted armrests used for muscle training for correcting muscular imbalance of arm, shoulder and back muscles
DE10051786A1
Arm rest has support fixed to vertical strut, as two telescopic tubes, elbow and underarm supports, and helical spring
DE10051502A1
table
AU1993901A
Armrest for a seat and seat, functioning as a training device
