Title: Machinery for cutting screws in the posts and rails of bedsteads
Patent number: 3,872
Date granted: 12/31/1844
View this patent at the USPTO.
Inventor: William Converse
Inventor: Richard Penny
Inventor: Richard Hannaford
Title: Machinery for cutting screws in the posts and rails of bedsteads
Patent number: 3,872
Date granted: 12/31/1844
View this patent at the USPTO.
Inventor: William Converse
Inventor: Richard Penny
Inventor: Richard Hannaford