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English: Wrench, USPTO Patent Number: US001413121
Date
Source Source: United States Patent and Trademark Office: U.S. Patent 001,413,121
Author John Arthur "Jack" Johnson

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May or may not be in the public domain
In general, the contents of United States patents are in the public domain.

In specific cases, patent applicants and holders may claim copyright in portions of those documents. In those specific cases, applicants are required to identify the portions that are protected under copyright, and are additionally required to state the following within the body of the application and patent (see 37 CFR 1.71(d) & (e) and 37 CFR 1.84(s), and MPEP § 608.01(e) & (w) and MPEP § 1512):

A portion of the disclosure of this patent document contains material which is subject to (copyright or mask work) protection. The (copyright or mask work) owner has no objection to the facsimile reproduction by any­one of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all (copyright or mask work) rights whatsoever.

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Source: United States Patent and Trademark Office, www.uspto.gov” USPTO Patent Number: US001413121 Pursuant to federal law, most government-produced materials appearing on this website are not subject to copyright restrictions within the United States and are therefore in the public domain.

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