Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Releasable ribbon locking device in a ribbon cartridge

Releasable ribbon locking device in a ribbon cartridge

US Patent 4337001 · Granted Jun 29, 1982

Estimated economic value: $1,392,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Cassette having compatibility arrangement1993
Plural cassettes having compatibility arrangement1990
Ink ribbon and correction tape cassette compatibility1990
Ribbon tensioning mechanism1989
Ribbon cassette1987
Ribbon cartridge1982
Ribbon cartridge1982