Electronic performance timer for several competing athletes

Electronic stopwatch with elapsed time alarm

Electronic switch

Electronic time piece circuit for incorporation into an...

Electronic time signalling device for producing a time...

Electronic timepiece

Electronic timepiece having a small frequency division stage...

Electronic timepiece having an alarm device

Electronic timepiece having shelf-life battery conservation...

Electronic timepiece with automatic alarm shut off

Electronic timepiece with designation of various displays

Electronic timepiece with display energized when worn

Electronic timepiece with display switch operated by current...

Electronic timepiece with l.e.d. display operated by...

Electronic timepiece with printed circuit board

Electronic timepiece with recurrent and single alarm

Electronic timepiece with single and repeat alarm circuits

Electronic timepiece with single push button cam operated...

Electronic timepiece with time shared selection of alarm...

Electronic watch