(under subclass 17) Devices in which the sensing means directly acts to prevent or preclude movement of discharging means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
125, for plural source dispensing devices having separate discharge means for each source and lockout means to inhibit motion or operation of the discharge means of nonselected sources.
151+, for article dispensers having means for blocking or disabling the ejector or releaser means thereof but not involving an empty supply source responsive means.
