Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 30
r, after longlitigation, the United States Patent Office and the courts haveawarded the priority to him as against Gray and many others. AMERICAN TELEPHONE PRACTICE. Bell possessed a greater knowledge of acoustics than of electricalscience, and it was probably this that led him to appreciate… … FIG. 10.—BELLS CENTENNIAL RECEIVER.
Telephone
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