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US Patent: 3,441,684
Anti-side tone circuit
Telephony circuit
Patentee:
Robert B. McLeod (exact or similar names) - Clinton, MA

USPTO Classifications:
333/117, 333/32, 379/392

Tool Categories:

Assignees:
E. W. Bliss Co. - Canton, OH

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Sep. 12, 1966
Granted: Apr. 29, 1969

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for E. W. Bliss Co.

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