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US Patent: 872,072
Spark Destroyer for Smoke Stacks
Patentee:
Frank J. Lyman - Minot, Ward County, ND

USPTO Classifications:
366/298, 366/300, 55/400, 55/DIG.20

Tool Categories:
propulsion and energy : steam apparatus : steam traction engines : spark arresters

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Aug. 08, 1906
Granted: Nov. 26, 1907

Patent Pictures:
USPTO pdf tiff
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