Published a paper, "The Pocket Cephalometer, or Compass of Coordinates", detailing his invention and its application
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Published a paper, "The Pocket Cephalometer, or Compass of Coordinates", detailing his invention and its application
Text from Wikipedia, available under CC BY-SA 4.0.
Captured 2026-08-17 from Wikipedia. The archived copy is preserved so this citation survives link rot.