Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 444
Fig. I. Fig. 2. fig-3- … Fig. 6. Fig. 7. Pirate XXI.—Various forms of inductorium, as given by Ziperuowski & Deri. 1S90. 432 Colics: LJ-F-I-, Now compare these forms with those shown in PlatesIV and VI.* We see at once the practical identity of Fig. iwith Plate IV, embodying the rotating magneticbridge with its brushes…
Science · Technology · Meteorology · Patents
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