CODED INK RECORDING AND READING
United States Patent 3486006
Inventors:
Siegel, Lester Aaron
Publication Date:
12/23/1969
Assignee:
AMERICAN CYANAMID CO
Other Classes:
400/106, 235/462.040, 101/109, 400/466, 400/240.400, 250/363.010, 400/240.300, 250/271
International Classes:
A47C7/18; B41J31/05; C09D5/22; C09D11/00; C09K11/74; C09K11/77; G01N21/64; G06K1/12; G06K7/12; G06K19/00; G06K19/02; G06K19/08; G09C1/08; G11B7/003; G06K19/06; G06K1/00; G09C1/06; G11B7/00; G06K7/12; G06K1/12
US Patent References:
| 3145291 | Identification system | | | |
| 3180988 | Apparatus for distinguishing between fluorescent and phosphorescent markings | | | |
| 3367910 | Modihed organopolysiloxanes and method of preparation | | | |
| 3377292 | Synergized lanthanide chelate photoluminescent composition | | | |
| 2784392 | Data recording system | | | |