Number | Name | Date | Kind |
---|---|---|---|
854640 | Fuller | May 1907 | |
1075264 | Morrison, Jr. | Oct 1913 | |
1338963 | Rolfe | Apr 1918 | |
2818259 | Arenson | Dec 1957 | |
3039771 | Bablouzian | Jun 1962 | |
3309091 | Haecker | Mar 1967 | |
3455553 | Melvin | Jul 1969 | |
3727918 | Zawacki | Apr 1973 | |
3790173 | Callaway | Feb 1974 | |
3791653 | Yamada | Feb 1974 | |
4057251 | Jones et al. | Nov 1977 | |
4270751 | Lowy | Jun 1981 | |
4561660 | Zammuto | Dec 1985 | |
4567461 | Honekman et al. | Jan 1986 | |
4586716 | Brejcha et al. | May 1986 | |
4635940 | Kelley | Jan 1987 | |
4651998 | Holt et al. | Mar 1987 | |
4706962 | Michalski | Nov 1987 | |
4793618 | Tillery et al. | Dec 1988 |
Number | Date | Country |
---|---|---|
0182397 | May 1986 | EPX |
2130107 | May 1984 | GBX |
Entry |
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Project "Arachnid" Report on the Pre-University Course Project, 1973. |
"Audio Device for the Blind--IBM Technical Disclosure Bulletin," vol. 21, No. 9, Feb. 1979, by S. M. Head, et al. |