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Inventors
ORVILLE
Ronald B. Royster
Main Entry
Ronald B. Royster
Patent Title
Plate for Chain Door Locks
Family Name
Royster
Given Name
Ronald
Middle Name
B.
Patent Date
January 22, 1974
Patent Number
D230,009
Location
DC
Item sets
INDEX OF BLACK INVENTORS BY STATE OR COUNTRY OF RESIDENCE 1834-2008