Title: Upright piano action
Patent number: 132,557
Date granted: 10/29/1872
View this patent at the USPTO.
Inventor: Thomas Atkins
Inventor: Henry Drewer
Title: Upright piano action
Patent number: 132,557
Date granted: 10/29/1872
View this patent at the USPTO.
Inventor: Thomas Atkins
Inventor: Henry Drewer