Electric light switches; Electrical wiring devices in the nature of sockets, receptacles, switches, controllers incorporating tactile instructions and/or warnings for use by the blind; Electro-dynamic apparatus for the remote control of signals; Electronic proximity sensors and switches; Radio transmitters and receivers for remote controls, radio controls; Switches, electric

'and/or':18 'apparatus':28 'blind':24 'control':14,32,46,48 'devic':6 'dynam':27 'electr':1,4,50 'electro':26 'electro-dynam':25 'electron':35 'incorpor':15 'instruct':17 'light':2 'natur':9 'proxim':36 'radio':40,47 'receiv':43 'receptacl':12 'remot':31,45 'sensor':37 'signal':34 'socket':11 'switch':3,13,39,49 'tactil':16 'transmitt':41 'use':21 'warn':19 'wire':5

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