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Edward John Dent
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A description of the dipleidoscope, or double-reflecting meridian and altitude instrument
Edward John Dent · The Author
24 sayfa · 1845
Equipment and Supplies / Weights and Measures / Time / Dipleidoscope





![A paper, on the patent azimuth and steering compass invented by E.J. Dent ... [together with a paper on the shape of the wheel-teeth in the clock for the new Royal Exchange]](https://covers.openlibrary.org/b/id/8221458-L.jpg)
