(under subclass 520) Subject matter wherein structure is provided to simulate a varied resistance to depression of the push button to indicate by feel the position of the contacts.
(1) Note. These devices generally try to simulate the effects of a snap switch which reaches maximum resistance to travel prior to switch-over followed by an abrupt decline in resistance after the contacts are closed.
SEE OR SEARCH CLASS
400, Typewriting Machines,
491.3, for tactile feedback type mechanisms used in typewriters.
