Letters patent (United States) No 135,036 John Wesley Hackworth, Improvement in Valve Gears for Steam Engines

Made:
1873-01-21
part of archive:
Hackworth Family Archive
maker:
Hackworth, John Wesley (b 1820 – d 1891)

Details

Extent:
1 item
Identifier:
HACK/3/2/1/13

Browse this archive