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| Patents for David R. Ellingen | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,942,356 | Jul. 17, 1990 | L.D. Pacetti, D. Mieczkowski, S.E. Michalski, D.R. Ellingen | Modular electronic device | ||
| D335,093 | Apr. 27, 1993 | C.F. Govekar, M.C. Putrow, D.R. Ellingen, T.J. Green, T.J. Caron, L.D. Pacetti, R.J. Holmen | Digital Oscilloscope | ||