Resource Type

States

Computing-Scale. (open access)

Computing-Scale.

Patent for a computing scale for weighing items and calculating their price per pound.
Date: September 26, 1911
Creator: Cameron, Clyde M.
System: The Portal to Texas History
Pump. (open access)

Pump.

Patent for an improvement in pumps.
Date: September 18, 1888
Creator: Vanmeter, James Wright
System: The Portal to Texas History