Zimmerman, Joseph James, Jr.
- Zimmerman, Joseph James, Jr.
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▪ 2005
American inventor (b. 1912, Milwaukee, Wis.—d. March 31, 2004, Brookfield, Wis.), in 1948 developed, with George Danner, the first telephone answering machine. His Electronic Secretary sold more than 6,000 units before General Telephone Corp. (later GTE) purchased the patent for the device in 1957. While AT&T initially stated that answering machines would be harmful to existing telephone lines, “Baby Bell” companies would later help popularize the systems with their customers. In later years Zimmerman improved on his earlier design, created a telephone auto-dialer system, and patented a magnetic heart monitor.
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Universalium.
2010.
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