Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Cartridge-shaped cleaning device

Cartridge-shaped cleaning device

US Patent 4825319 · Granted Apr 25, 1989

Estimated economic value: $218,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Apparatus for demagnetizing the magnetic head of a cassette tape recording and/o1989
Video synchronizing signal separator1986