Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Electronic digital timepiece having a stopwatch function and a timer function

Electronic digital timepiece having a stopwatch function and a timer function

US Patent 4236238 · Granted Nov 25, 1980

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Electronic watch equipped with solar cell2001
Module for quartz watch1991
Electronic wristwatch1986
Electronic timepiece1981
Module structure for electronic digital timepiece1981
Wristwatch with solar cells1981
Solid state watch module construction1980