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US Patent: 141,816
Improvement in devices for centering barrel-heads
Patentee:
John J. Ralya (exact or similar names) - Cleveland, OH

USPTO Classifications:
147/36, 33/27.03

Tool Categories:
woodworking machines : specialty woodworking machines : barrel making machines
trade specific : cooper

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
George A. Groot
S. Burke

Patent Dates:
Applied: Sep. 26, 1872
Granted: Aug. 12, 1873

Patent Pictures:
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