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US Patent: 1,998,557
Fruit Jar Cap Wrench and Rethreader
Roger Sannipoli - Detroit, MI

USPTO Classifications:
470/209, 72/121, 72/409.01, 81/3.43

Tool Categories:
wrenches : jar wrenches


Thomas Products Co. - Detroit, MI

none listed

Patent Dates:
Applied: Jan. 06, 1934
Granted: Apr. 23, 1935

Patent Pictures: [ 1 | 2 | 3 ]
Roger Sannipoli patent April 23, 1935
USPTO pdf tiff
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The patent describes a resilient surface lining on a flat band type jar wrench, combined with a wire loop to re-form threads on the caps.

The tool as produced does not include the re-threader feature. Known examples marked only with the patent number.

The wrench appears as the "opener" half of a two-piece jar holder and opener combination produced by Thomas Products Co. of Detroit, MI in 1952.

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