Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 486
is attached directly to the case of the coincollector. In this style of assembly, the noises are very plainly heardby the central office operator. An adaptation of this type of coincollector to desk portables is shown at the left of Fig. 339. When one of these coin boxes forms a portion of a… … o HUW J ou
Telephone
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