U.S. patent number D340,031 [Application Number 07/598,447] was granted by the patent office on 1993-10-05 for enclosure for a programmable input/output controller. This patent grant is currently assigned to International Business Machines Corporation. Invention is credited to David W. Hill.
United States Patent | D340,031 |
Hill | October 5, 1993 |
Inventors: | Hill; David W. (Rochester, MN) |
---|---|
Assignee: | International Business Machines
Corporation (Armonk, NY) |
Appl. No.: | 07/598,447 |
Filed: | October 15, 1990 |
Current U.S. Class: | D13/162.1; D13/184 |
Field of Search: | ;D13/123,162,164,184 ;361/380,383,391,392,393,394,395,399,415 |
D254613 | April 1980 | Ault |
D300426 | March 1989 | Lotz |
D319425 | August 1991 | Bibbiani |
4672510 | June 1987 | Castner |
4912604 | March 1990 | Vaisanen |
4922407 | May 1990 | Birk et al. |
Dialer and logger on p. 176 of Control Engineering, Sep. 1989. . Controller on p. 227 of Control Engineering, Sep. 1989. . Programmable controller on p. 99 of Control Engineering, Nov. 1989. . Controller US-5000 on p. 72 of Electrical Construction & Maintenance, Dec. 1989.. |
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