David N. Crosthwait, Jr.

Main Entry
David N. Crosthwait, Jr.
Patent Title
Tool for Adjusting Valves
Family Name
Crosthwait
Given Name
David
Middle Name
N.
Suffix
Jr.
Patent Date
November 18, 1969
Patent Number
3,478,625
Location
IN
Item sets
INDEX OF BLACK INVENTORS BY STATE OR COUNTRY OF RESIDENCE 1834-2008