-
-
Electroerosion printing plates
-
Patent number 5,176,947
-
Issue date Jan 5, 1993
-
International Business Machines Corporation
-
Ali Afzali-Ardakani
-
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
-
-
Direct negative from resistive ribbon
-
Patent number 4,915,519
-
Issue date Apr 10, 1990
-
International Business Machines Corp.
-
Ali Afzali-Ardakani
-
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
-
-
-
-
-
-
-
-
-
System for reproducing mixed images
-
Patent number 4,668,995
-
Issue date May 26, 1987
-
International Business Machines Corporation
-
Yi-Hsin Chen
-
H04 - ELECTRIC COMMUNICATION TECHNIQUE
-
-
-
Dot matrix printer
-
Patent number 4,596,479
-
Issue date Jun 24, 1986
-
International Business Machines Corporation
-
Eric G. Lean
-
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
-
-
-
-
-
-
-
-
-
-
-
Non-impact printing system
-
Patent number 4,046,074
-
Issue date Sep 6, 1977
-
International Business Machines Corporation
-
Frederick Hochberg
-
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
-
Micromist jet printer
-
Patent number 4,019,188
-
Issue date Apr 19, 1977
-
International Business Machines Corporation
-
Frederick Hochberg
-
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
-
-