Orville Z. Frazier

Main Entry
Orville Z. Frazier
Patent Title
Locomotive Valve Mechanism
Family Name
Frazier
Given Name
Orville
Middle Name
Z.
Patent Date
February 12, 1935
Patent Number
1,990,899
Location
MI
Item sets
INDEX OF BLACK INVENTORS BY STATE OR COUNTRY OF RESIDENCE 1834-2008