Title: Roofing composition
Patent number: 51,309
Date granted: 12/05/1865
View this patent at the USPTO.
Inventor: Louis Groneweg
Inventor: Joseph Pulte
Inventor: Charles Jones
Title: Roofing composition
Patent number: 51,309
Date granted: 12/05/1865
View this patent at the USPTO.
Inventor: Louis Groneweg
Inventor: Joseph Pulte
Inventor: Charles Jones