Number | Name | Date | Kind |
---|---|---|---|
D245286 | Osterlund et al. | Aug 1977 | |
4037532 | Plaza et al. | Jul 1977 | |
4062285 | Deetz et al. | Dec 1977 | |
4401026 | Brown | Aug 1983 |
Number | Date | Country |
---|---|---|
18280 | Jan 1982 | JPX |
163681 | Sep 1983 | JPX |
1281 | Jan 1984 | JPX |
Entry |
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IBM Technical Disclosure Bulletin, vol. 18, No. 12, 5/1976, p. 4072-print hammer position sensor. |
IBM Technical Disclosure Bulletin, vol. 19, No. 6, 11/1976, p. 2036-print hammer. |