![Leon R. Dreyfus](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Leon R.
Dreyfus worked as Director of Research & Development at Touchstone Applied Science Associates, Inc. and as Vice President of Research & Development at Questar Assessment, Inc. He received undergraduate and graduate degrees from Texas A&M University and a doctorate degree from the University of Maine.
| Unternehmen | Position | Ende |
|---|---|---|
Touchstone Applied Science Associates, Inc.
 Touchstone Applied Science Associates, Inc. Commercial Printing/FormsCommercial Services Develops, publishes and distributes educational tests to elementary and secondary schools | Technik-/Wissenschafts-/F&E-Leiter | - |
| QUESTAR ASSESSMENT, INC. | Technik-/Wissenschafts-/F&E-Leiter | - |
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Börsennotierte Unternehmen
Private Unternehmen
| Private Unternehmen | 4 |
|---|---|
Touchstone Applied Science Associates, Inc.
Touchstone Applied Science Associates, Inc. Commercial Printing/FormsCommercial Services Develops, publishes and distributes educational tests to elementary and secondary schools | Commercial Services |
Texas A&M University
 Texas A&M University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
University of Maine
 University of Maine Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Questar Assessment, Inc.
 Questar Assessment, Inc. Packaged SoftwareTechnology Services Provides educational assessment solutions for states, schools and school districts | Technology Services |
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