Inventor
MORT CHARLES F
3 patents
Patents
3 patentsUS4023010AMay 10, 1977
Optical identification system and reader for reading optical gratings on a record medium
NCR CO65 citations94
US4044939AAug 30, 1977
Method of fabricating diffraction grating masters and apparatus therefor
NCR CO16 citations80
US4092234AMay 30, 1978
Method of fabricating diffraction grating masters and apparatus therefor
NCR CO9 citations72