Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 83
he granules to settle down in a compact mass,commonly called packing, is greatly diminished. It is withoutquestion one of the most successful transmitters yet introduced, andfor a long time was unapproached in general efficiency. The front, F. is of brass, and is held, as shown, in the hollow…
Telephone
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