LOCKE, JOHN |
USA, 1792-1856, MIM SIM |
Surveying Compass = USNM. |
a medical doctor; invented an orrery made by Aaron Willard Jr.; patented a type of surveying compass; invented an electro-chronograph and a collimating level; did research on magnetism; Professor of Chemistry, Ohio Medical College; it may be that there are two John Lockes. |
Boston, Mass.; Cincinnati, Ohio; Newark, Ohio. |
Smart 1; D.J. Warner 6; USNM. |
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