Resource Type

Improvement in Machines for Polishing Marble, &c. (open access)

Improvement in Machines for Polishing Marble, &c.

Patent for an improved machine that rubs and polishes marble using a sand and water box moving forward and backward to polish the stone without man power and tools, including illustration.
Date: March 20, 1860
Creator: Emmett, William
System: The Portal to Texas History