Resource Type

Valve for Engines. (open access)

Valve for Engines.

Patent for certain new and useful improvements in valves for steam engines, including instructions and illustrations.
Date: November 8, 1898
Creator: Allen, Walter J.
System: The Portal to Texas History
Gas-Machine. (open access)

Gas-Machine.

Patent for a new and useful gas machine, including instructions and illustrations.
Date: November 8, 1898
Creator: Ratisseau, William L.
System: The Portal to Texas History