73137323
Aug 12, 1977
Mar 28, 1978
PREPARING AN IDENTIFYING PHOTOGRAPHIC RECORD OF AN OPTICAL PATTERN OF A STONE SUCH AS A DIAMOND OR THE LIKE; AND MAINTAINING A CENTRAL REGISTRY OF PHOTOGRAPHIC RECORDS OF OPTICAL PATTERNS OF STONES SUCH AS DIAMONDS OR THE LIKE FOR PURPOSES OF IDENTIFICATION, CERTIFICATION, VERIFICATION, AND REGISTRATION OF PRECIOUS STONES
Computer and Scientific