Title: Ditching machine
Patent number: 57,815
Date granted: 9/4/1866
View this patent at the USPTO.
Inventor: Jacob Ballard
Inventor: Thomas Magee
Title: Ditching machine
Patent number: 57,815
Date granted: 9/4/1866
View this patent at the USPTO.
Inventor: Jacob Ballard
Inventor: Thomas Magee