165353 ⎘
Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using rotatable arms or other pivotable transmission elements using electrically actuated indicating means using optoelectrically actuated indicating means
COOLING DEVICE AND IMAGE FORMING APPARATUS
#2System and method for optically detecting low liquid level condition
#3Liquid cartridge and liquid supplying device
#4APPARATUS AND ASSOCIATED METHOD FOR CONTROLLING A WASHING FLUID LEVEL IN A DISHWASHER
#5Light sensing contactless fuel level sensor
#6Automatic liquid soap supplying system