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US Patent: 3,487,365
Comparing Circuit
Patentees:
Robert M. Henderson (exact or similar names) - Williams Bay, Walworth County, WI
Richard Zechlin (exact or similar names) - Beloit, Rock County, WI

USPTO Classifications:
340/146.2

Tool Categories:
electrical devices : electronic circuitry and apparatus

Assignees:
Fairbanks, Morse Inc. - New York, NY

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Aug. 08, 1966
Granted: Dec. 30, 1969

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Fairbanks, Morse & Co.

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