File:Wobble chair for babies and toddlers by William F. Hudson in 1923.tiff

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Original file(2,320 × 3,408 pixels, file size: 43 KB, MIME type: image/tiff)
Description

These are two of the drawings for a patent titled "Amusement and Exercising Device."

The inventor was William F. Hudson of Philadelphia, Pennsylvania.

The 1929 U.S. patent for this device was applied for in 1923. Its patent number is 1,712,703. The patent included eleven drawings.

Date
Source Patent 1,712,703 of the U.S. Patent and Trademark Office
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Author William F. Hudson
Permission
(Reusing this file)
Public domain The text and illustrations of US patents published before March 1, 1989 are in the public domain unless the patent text contains a specific notice that portions are copyrighted.See [1], 37 CFR 1.7(d), 37 CFR 1.84(s)

The original patent contains no such notice, so its contents are in the public domain. Note: This only applies to images published before March 1, 1989. Patents published after that date are most likely copyrighted, unless in the public domain for another reason, such as {{PD-ineligible}}.

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current04:59, 2 September 2011Thumbnail for version as of 04:59, 2 September 20112,320 × 3,408 (43 KB)DavidMaisel (talk | contribs){{Information |Description= These are two of the drawings for a patent titled "Amusement and Exercising Device." The inventor was William F. Hudson of Philadelphia, Pennsylvania. The 1929 U.S. patent for this device was applied for in 1923. Its patent
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