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US Patent: 1,647,980
Machine for operating on barrels or other containers
Patentees:
William W. Trevor - Lockport, NY
Delbert A. Berean - Barker, NY

USPTO Classifications:
147/13

Tool Categories:
trade specific : cooper

Assignees:
Trevor Manufacturing Co. - Lockport, NY

Manufacturer:
Trevor Manufacturing Co. - Lockport, NY

Witnesses:
Unknown

Patent Dates:
Applied: Mar. 26, 1924
Granted: Nov. 08, 1927

Patent Pictures:
USPTO pdf tiff
Google Patents
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"Vintage Machinery" entry for Trevor & Co.

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