Controlling members specially adapted for actuation by other parts of the human body than hand or foot

Full Title

Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members > Controlling members specially adapted for actuation by other parts of the human body than hand or foot

Classification Context

Section:

PHYSICS

Class:

CONTROLLING; REGULATING

Subclass:

CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY