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Displaying 1-2 of 2 results for author "Leviton, Douglas B."
Linear encoding device [microform] / inventor, Douglas B. Leviton.
- Text
- [Washington, DC : National Aeronautics and Space Administration, 1993]
- 1993
Rotary encoding device [microform] : patent application / [inventor, Douglas B. Leviton].
- Text
- [Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1993]
- 1993
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