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Inventors
ORVILLE
Emanuel L. Logan, Jr.
Main Entry
Emanuel L. Logan, Jr.
Patent Title
Timing apparatus for delaying opening of doors
Family Name
Logan
Given Name
Emanuel
Middle Name
L.
Suffix
Jr.
Patent Date
May 11, 1982
Patent Number
4,328,985
Location
VA
Item sets
INDEX OF BLACK INVENTORS BY STATE OR COUNTRY OF RESIDENCE 1834-2008