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US Patent: 280,931
Bung For Casks, Barrels, &c.
Patentee:
William W. Jackson (exact or similar names) - Chicago, IL

USPTO Classifications:
217/109

Tool Categories:
wrenches : auxiliary wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
W. W. Elliott
Jno. G. Elliott
Frank J. Blanchard
Will R. Omohundro
Patent Dates:
Applied: Dec. 18, 1882
Granted: Jul. 10, 1883

Patent Pictures:
William W. Jackson patent July 10, 1883
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Description:
The patent is for the bung with its external expanding shell, the expander, and corresponding inserting tool.

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