. The Bell System technical journal . Fig. 4—Cup anemometer mounted on pole of Line 1. TELEPHONE LINE WIRE SPACING PROBLEMS 203 \^^ \ \\ ^ .\. Fig. 5—Wind vane mounted on pole of Line 1. 204 BELL SYSTEM TECHNICAL JOURNAL

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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1