Pace calculation watch
Passively activated lap counter and timer
Pet watch process and circuit
Picosecond resolution sampling time interval unit
Plate structure for a timer
Portable electronic recorder and method for operating same
Potty trainer timepiece
Precise time measurement apparatus and method
Precise time measurement apparatus and method
Precise time period measurement
Precision semiconductor device timer
Printed circuit board fabrication technique
Printed circuit board fabrication technique
Process for determining the electrical duration of signal paths
Process timing apparatus
Program carrier for switching chronometer systems
Program plate for a timer
Programmable reminder device having multi-event capacity
Programmable timing device
Programmable timing unit for generating multiple coherent timing