Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Portable recorder apparatus for recording time-related data

Portable recorder apparatus for recording time-related data

US Patent 4197561 · Granted Apr 8, 1980

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Mortarless tile installation system and method for installing tiles2013
Mortarless tile installation system and method for installing tiles2012
Gear shift indication method and apparatus2008
Methods and systems for selling products in a home improvements or commercial co2007
System for tracking and correcting drift and dispersion in satellite transmissio1995
Satellite locating system1991
Apparatus for storing hydrogen isotopes1985