Number | Date | Country | Kind |
---|---|---|---|
6117915 | May 1986 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
D258654 | Levy | Mar 1981 | |
D258655 | Levy | Mar 1981 | |
D274798 | O'Hara et al. | Jul 1984 | |
D297949 | Yubisui et al. | Oct 1988 |
Entry |
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Business Communication Products Division/3M-Nov. 1983, p. 1 (3M Whisper Reader Communications Terminal). |