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The following schools, organizations, and companies use ZipADip® protractors!

  • University of California, Los Angeles
  • University of California, Davis
  • Association of Engineering Geologists
  • Miner's Incorporated
  • Geotechnologies, Inc.
  • URS, Inc.
  • California State University Northridge
  • University of Minnesota
  • Hobart and William Smith Colleges




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