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Telephone Beep System Delivers Concrete At Washington Dam
Ground workers at Boundary Dam Metaline Falls Washington replaced radio-only signals with a General Telephone system. A groundman communicates with the 700 feet distant cableway operator through live voice beeps and tone signals while the 20 ton bucket delivers concrete across a canyon.
MENTIONED IN THIS ARTICLE
Washington Dam
Boundary
Metaline Falls
Washe
General Telephone Company of the
Northwest
General Telephone and Electronics Corporation
Pend Oreille River
Boundary Dam
Ted
Washington
W. W. Sherman