Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Universal measured service interface for step-by-step telephone exchanges

Universal measured service interface for step-by-step telephone exchanges

US Patent 4440978 · Granted Apr 3, 1984

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Rail and clip mounting for LED modules for fluorescent application replacement2015
Rail and clip mounting for LED modules for fluorescent application replacement2013
Removable optical disc storage cartridge2011
LED lighting system for a cabinet sign2011
LED light engine2010
Canonical Huffman encoded data decompression algorithm2003
Casing treatment for a fluid compressor2003
Casing treatment for a fluid compressor2001
Coffee grinding, portioning, and pressing device2000
Off-line programming system for control of industrial robots1998
DC electrical power supply system1998