- Country: USA
- Genres: Comedy, Short
- Release: 1925-01-04
- Director: Leo McCarey
- Writers: N/A
- Language: None | English
- Stars: Charley Chase , Martha Sleeper , Sammy Brooks , Jack Gavin , Dick Gilbert , William Gillespie , Helen Gilmore , Clara Guiol , Jules Mendel , Jack O’Brien
- Runtime: 11 min
- Awards: N/A
- AKA: The Rat's Knuckles , Le Piège à rats (France, French Republic) , The Rat's Knuckles (United States of America)
- Plot: Professor James Jump hopes to strike it rich with his invention of a more humane mouse trap.
- IMDB:tt0016268
The Rat’s Knuckles Cast · · · ALL
Leo McCarey
Director
Charley Chase
Jimmy Jump
Martha Sleeper
Flirty McFickle
Sammy Brooks
Blind man
Jack Gavin
Piano mover
William Gillespie
Jimmy's rival
Jules Mendel
Patent office clerk