Title: Lubricator
Patent number: 122,427
Date granted: 1/2/1872
View this patent at the USPTO.
Inventor: Isaac Barnett
Inventor: Peter Eckford
Title: Lubricator
Patent number: 122,427
Date granted: 1/2/1872
View this patent at the USPTO.
Inventor: Isaac Barnett
Inventor: Peter Eckford