The practical telephone handbook and guide to the telephonic exchange (1906)
Poole, Joseph · New York, Macmillan Co. · leaf 311
minal tab strips and arrester strips arescrewed, so as to form horizontal rows on the. h side andvertical rows on the v side. A view of four vertical rows APPARATUS-ROOM 283 >■ < A 1 U-S-y* w I o IF # I 21- _H. f k * J k * s i l fr» IF Ufc Cables # k. # I I § ? te= 1- 1- h h h W >- h 1-… … F.g. 288 Apparatus-room 285
Telephone
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