Census of Electrical Industries: TelephonesU.S. Government Printing Office, 1930 - Telephone |
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according to income actual number Alabama Arizona Arkansas Bell System Bell-controlled companies calls per telephone census CENT OF TOTAL central offices Change in classification classification according Connecticut December 31 Delaware East North Central East South England exchange and toll GEOGRAPHIC DIVISIONS Hampshire Idaho include data incomes of less Investment in plant Kentucky levied by mutual line or system lines reporting annual Louisiana Maryland Middle Atlantic Miles of wire Montana Mountain mutual companies Nebraska Nevada North Carolina Number of calls Number of central Number of employees Number of originating Number of systems number of telephones originating calls overhead and underground Pacific phantom circuit plant and equipment reporting annual incomes Rhode Island salaries and wages schedule small systems South Atlantic South Dakota systems and lines SYSTEMS REPORTING ANNUAL TABLE telephone per day Total Exchange Toll total number Utah Vermont W. N. CENTRAL West North West South West Virginia wire mileage Wisconsin Wyoming