Number | Date | Country | Kind |
---|---|---|---|
55-29887 | Mar 1980 | JPX | |
55-31272 | Mar 1980 | JPX | |
55-47367 | Apr 1980 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3159815 | Groce | Dec 1964 | |
3379826 | Gray | Apr 1968 | |
3388257 | Ten Eyck | Jun 1968 | |
3415950 | Bartz et al. | Dec 1968 | |
3443026 | Townsend | May 1969 | |
3472958 | Estock | Oct 1969 | |
3626092 | Wilson | Dec 1971 | |
3796866 | McClellan | Mar 1974 | |
3867569 | Watson | Feb 1975 | |
4263522 | Jensen | Apr 1981 | |
4272789 | Biron | Jun 1981 | |
4276568 | Wischer | Jun 1981 | |
4351004 | Choate et al. | Sep 1982 |
Entry |
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Smith-Reflective Document Detector-IBM Tech. Discl. Bull., vol. 23-No. 1-Jun. 1980, pp. 137-138. |