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US Patent: 2,962,584
Improvements in or relating to switching devices for signal transceivers
Patentee: Samuel K. Lackoff (exact or similar names) - Manchester, NH USPTO Classifications: 455/82 Tool Categories: electrical devices Assignees: Van Norman Industries, Inc. - Springfield, MA Manufacturer: Van Norman Industries, Inc. - Springfield, MA Witnesses: Unknown	Patent Dates: Applied: Mar. 07, 1957 Granted: Nov. 29, 1960 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Van Norman Machine Tool Co.

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