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US Patent: 483,035
Bung
Patentees:
Mark Anthony - Berkeley, CA
William C. Savage - Oakland, CA

USPTO Classifications:
217/107, 81/3.49

Tool Categories:
wrenches : auxiliary wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Paul W. Stevens
Philip C. Masi
Geo. H. Parmelee
James L. King
John T. Young

Patent Dates:
Applied: Jan. 21, 1892
Granted: Sep. 20, 1892

Patent Pictures:
Mark Anthony and William C. Savage patent September 20, 1892
USPTO pdf tiff
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Description:
The bung has a matching "key" or wrench for insertion and removal. The wrench fits under overhanging lips in the bung only when positioned for removing the bung.

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