In the electric timer having an analog time display and a disk or ring shaped program carrier programmable by means of slide contacts, the program carrier is settable selectively by {HEAD ~ means} of {TAIL ~ a switching device} to different synchronous speeds of rotation, namely one revolution per week or one revolution per day 
In the electric timer having an analog time display and a disk or ring shaped program carrier programmable by means of slide contacts , the program carrier is settable selectively by { HEAD ~ means } of { TAIL ~ a switching device } to different synchronous speeds of rotation , namely one revolution per week or one revolution per day
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