(under subclass 71) Apparatus having means giving information as to the position or range of motion of a discharge effecting part or parts necessary to the control of discharge.
SEE OR SEARCH CLASS
116, Signals and Indicators, particularly
200+, for scale and pointer subcombinations.
137, Fluid Handling,
553+, for fluid handling systems having position or extent of motion indicators.
222, Dispensing, 41+, for dispensers having position or extent of motion indicators.
