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24th November 1910, Page 22

24th November 1910

Page 22

Page 22, 24th November 1910

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Patents Completed.

ELECTRIC-DYNAMO MACHINERY. —Midgley and Vandervell.—No. 16,447, dated 14th :July, 1909.—This invention is for an electric-dynamo machine, in which the rate of revolution is......