Automatic telephony; a comprehensive treatise on automatic and semi-automatic systems (1921)
Smith, Arthur Bessey, b. 1875, Campbell, Wilson Lee · New York : McGraw-Hill · leaf 134
evel lines.If the A high and A low sections are to be multipled together, there TRUNKING, ITS PHYSICAL ARRANGEMENTS AND VARIATIONS 117 will be the two private strips on the first support, the two even level linestrips on the second support, and the two odd level line strips on thethird support. The… … Private Terminal Strip Line Bank Contacts
Telephone
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