179686 ⎘
Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals without driving mechanisms, e.g. egg timer by movement or acceleration due to gravity by flowing-away of a prefixed quantity of fine-granular or liquid materials, e.g. sand-glass, water-clock using electrical contact device
CONTROL SYSTEM, TIMING DEVICE, AND PROCESS EXECUTED BY THE SYSTEM
#2Magnetic time delay indicator and an injection device incorporating such
#3Timing system and device and method for making the same
#4Timing system and device and method for making the same
#5Timing system and device and method for making the same