Number | Name | Date | Kind |
---|---|---|---|
3601773 | Frieling | Aug 1971 | |
3793583 | Glomski et al. | Feb 1974 | |
3811089 | Strzelewicz | May 1974 | |
3886450 | Trussell et al. | May 1975 | |
3942113 | Wilson | Mar 1976 | |
4059799 | Faria | Nov 1977 | |
4274142 | Furahashi et al. | Jun 1981 | |
4296471 | Gout | Oct 1981 | |
4536708 | Schneider | Aug 1985 | |
4578755 | Quinn et al. | Mar 1986 | |
4732034 | Bjorn | May 1988 | |
4777435 | Leplay et al. | Oct 1988 | |
4942362 | Lance | Jul 1990 |
Number | Date | Country |
---|---|---|
56-33556 | Apr 1981 | JPX |
Entry |
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Benrey, "Build Your Own `Wireless` Tach", PS Electronics, Mar. 1965, pp. 110-112. |
Computer Controlled Handheld Digital Gasoline Engine Tachometer Model 501 DT-501, Catalog-501. |
Non-Contact Tachometer (NCT) Systems Control. |