Skip to main content
Advanced search
Browse
Inventors
ORVILLE
Frank J. Ferrell
Main Entry
Frank J. Ferrell
Patent Title
Steam Trap
Family Name
Ferrell
Given Name
Frank
Middle Name
J.
Patent Date
February 11, 1890
Patent Number
420,993
Location
NY
Item sets
INDEX OF BLACK INVENTORS BY STATE OR COUNTRY OF RESIDENCE 1834-2008