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US Patent: 217,570
Boiler Flue Cleaner
Patentees:
James Aitchison - Cleveland, OH
John F. Doolittle - Cleveland, OH

USPTO Classifications:
15/406

Tool Categories:
industrial tools : flue cleaners

Assignees:
None

Manufacturer:
Aitchison & Doolittle - Cleveland, OH

Witnesses:
Unknown

Patent Dates:
Applied: May 26, 1879
Granted: Jul. 15, 1879

Patent Pictures: [ 1 | 2 | 3 ]
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"Vintage Machinery" entry for James Aitchison

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