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Summary
Willian Austin Burt solar compass patent 1836
- Solar Compass - Surveying and How to Use a Sun Compass
- File:Burt solar compass patent 1836.jpg - Wikimedia Commons
- File:Picture-of-solar-compass-patent-burt-1836.jpg - Wikimedia ...
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Tags
Date
1836
Source
Wikimedia Commons
Link
Copyright info
public domain