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| All Patents in class 324/72.5 | |||||
| Number | Date | Patentee | Title | Type | |
| 1,924,913 | Aug. 29, 1933 | P.E. Chapman, C.L. Chittenden | Growler type testing device | electrical devices | |
| 4,052,665 | Oct. 04, 1977 | C.F. Guenwald | Capacitive Pickup Device for Pulsating High Voltage Measurements | ||
| 5,351,002 | Sep. 27, 1994 | R.D. Braun, T.J. Alho, G.S. Wollert | Test Probe | ||
| 6,512,361 | Jan. 28, 2003 | T.P. Becker | 14/42-Volt Automotive Circuit Tester | ||
| 6,577,116 | Jun. 10, 2003 | G.S. Wollert | Circuit Test Light | ||