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US Patent: 4,420,677
Heating system
Patentee:
Everett J. Partington (exact or similar names) - Oconomowoc, WI

USPTO Classifications:
126/101, 219/493, 237/59, 237/8A, 392/355, 392/358, 392/483

Tool Categories:

Assignees:
Everett J. Partington - Oconomowoc, WI

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Oct. 02, 1981
Granted: Dec. 13, 1983

Patent Pictures:
USPTO (New site tip)
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