Skip to main content
Advanced search
Browse
Inventors
ORVILLE
Charles V. Richey
Main Entry
Charles V. Richey
Patent Title
Lockout for Outgoing Calls for Telephone Systems
Family Name
Richey
Given Name
Charles
Middle Name
V.
Patent Date
July 7, 1931
Patent Number
1,812,984
Location
NY
Item sets
INDEX OF BLACK INVENTORS BY STATE OR COUNTRY OF RESIDENCE 1834-2008