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US Patent: 6,765
Machine for Making Washboads
Patentee:
William B. Stewart (exact or similar names) - Cincinnati, OH

USPTO Classifications:
227/152, 269/158, 415/148

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Edward H. Knight
Thos. G. Clinton
Patent Dates:
Granted: Oct. 02, 1849

Patent Pictures:
Fig. 1
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