Data introducing arrangement
DC monitor for active device speed
Decorative hourglass with light reflecting base
Delay test system for normal circuit
Delay test system for normal circuit
Delay time measurement apparatus for delay circuit
Delay time measuring device
Delta-T measurement circuit
Device comprising a clock movement and a chronograph module
Device for digitally measuring intervals of time
Device for measuring mean staying time
Device for measuring the duration of a time interval
Device for measuring the duration of a time slot
Device for measuring time intervals between a plurality of succe
Device to measure average timing parameters
Device with time indicating means
Devices and methods for specifying a time when a specified...
Dial-type timer device
Differential time interpolator
Differential time interpolator