Title: Artificial variegated marble
Patent number: 40,650
Date granted: 11/17/1863
View this patent at the USPTO.
Inventor: Isaac Straub
Inventor: Abraham Straub
Title: Artificial variegated marble
Patent number: 40,650
Date granted: 11/17/1863
View this patent at the USPTO.
Inventor: Isaac Straub
Inventor: Abraham Straub