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US Patent: 290,889
Rule or Measure
Tailor's Square
Patentee:
Frank J. Kellogg - Battle Creek, MI

USPTO Classifications:
403/85

Tool Categories:
rules : folding rules : folding rule joints
layout tools : squares

Assignees:
None

Manufacturer:
Unknown

Witnesses:
P. M. Dill
Wm. Atkins
W. C. MacArthur

Patent Dates:
Applied: Feb. 27, 1883
Granted: Dec. 25, 1883

Patent Pictures: [ 1 | 2 ]
USPTO pdf tiff
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"Professor" Frank J. Kellogg and his Patent Medicine
Description:
This rule features a series of holes that can be registered by a second arm to lock the two legs of the rule at a specific angle.

This patent was produced as "Mme. Kellogg's French Tailor's System", which is really odd because the inventor was a man named Frank from Battle Creek Michigan. Apparently he felt the tool would sell better to seamstresses if it had a woman's name on it.

"Professor" Frank J. Kellogs was a well-known huckster and purveyor of patent medicines such as Sanitone Wafers, Malto-Fructo, and Rengo. He was no relation to the Kellogg bothers that ran the famous Battle Creek sanitarium (and went on to form a cereal empire), but apparently used the name and location to lend legitimacy to his medicine business.

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