Number | Date | Country | Kind |
---|---|---|---|
3208737 | Mar 1982 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
1371969 | Furman | Mar 1921 | |
2974227 | Fisher et al. | Mar 1961 | |
3306156 | Glasser et al. | Feb 1967 | |
4081215 | Penney et al. | Mar 1978 |
Number | Date | Country |
---|---|---|
13409 | Jan 1982 | JPX |
Entry |
---|
Measurement and Control, vol. 2, No. 3, Mar. 1963, pp. 90-93. |