Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Improvements in a method of and a retraction cord for uncovering and draining the preparation limit line of teeth

Improvements in a method of and a retraction cord for uncovering and draining the preparation limit line of teeth

US Patent 4871311 · Granted Oct 3, 1989

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Extensible polishing mono-filament dental floss2002
Inlay, inlay holder, method for tooth restoration, and tooth restoration set for1996