Number | Name | Date | Kind |
---|---|---|---|
3932813 | Gallant | Jan 1976 | |
4011476 | Beard | Mar 1977 | |
4093917 | Haeussermann | Jun 1978 |
Number | Date | Country |
---|---|---|
1147787 | Apr 1963 | DEX |
1209780 | Jan 1966 | DEX |
1266033 | Apr 1968 | DEX |
Entry |
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G. M. Berkin, "Magnetic Tachometer", IBM Technical Disclosure Bulletin, vol. 3, No. 3, Aug. 1960, p. 74. |
D. E. Cuzner et al., "Shaft Speed Detector", IBM Technical Disclosure Bulletin, vol. 11, No. 3, Aug. 1968, p. 347. |
A. B. Wills, "Magnetic Tachometer", IBM Technical Disclosure Bulletin, vol. 16, No. 1, Jun. 1973, p. 260. |