Number | Date | Country | Kind |
---|---|---|---|
54-59484 | May 1979 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2514577 | Heller | Jul 1950 | |
3140361 | Eldridge | Jul 1964 | |
3303292 | Bedell, Jr. et al. | Feb 1967 | |
4017899 | Bagby | Apr 1977 | |
4118736 | Okada et al. | Oct 1978 | |
4253019 | Opheij et al. | Feb 1981 |
Number | Date | Country |
---|---|---|
51-80134 | Jul 1976 | JPX |
54-149611 | Nov 1979 | JPX |
472757 | May 1969 | CHX |
Entry |
---|
IBM/TDB, vol. 4, No. 1, Jun. 1961, p. 17, "Manufacture of Electromagnetic Transducer" by Moore. |