Hood, Grant · Kansas City, Mo. : Kansas City Jeweler and Optician · leaf 179
Fig. 5- … Fig. 6, together so the two metals are practically one piece. Toillustrate the action of the balance more clearly the articleshown in Fig. 5 was made; the upright rod supports two 172 The compensating balance and pendulum. straight pieces. Each of these pieces is composed of a stripof brass and…
Clocks and watches
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