File:5.-keichline-05-700x1055.jpg

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Captions

Captions

Anna Keichline, Patent for “Building Block,” #1,653,771 A, filed March 16, 1926, issued December 27, 1927

Summary[edit]

Description
English: Patent drawing with nine figures showing the various elements of a block for use in construction of hollow walls
Date March 16, 1926
Source United States Patent Office
Author Anna Wagner Keichline

Licensing[edit]

Public domain
This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.

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current15:49, 22 March 2023Thumbnail for version as of 15:49, 22 March 2023700 × 1,055 (83 KB)Saramacher (talk | contribs)Uploaded a work by Anna Wagner Keichline from United States Patent Office with UploadWizard

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