File:US patent 2125502.png

Original file(1,595 × 2,579 pixels, file size: 58 KB, MIME type: image/png)

Captions

Captions

Add a one-line explanation of what this file represents

Summary edit

Description
English: 1931 Gillette patent for various double-edge razor blade designs.
Date
Source U.S. Patent 2,125,502
Author J. Holtzman
Assigned to the Gillette Safety Razor Company

Licensing edit

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 37 CFR 1.71(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}}.

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current05:41, 8 November 2019Thumbnail for version as of 05:41, 8 November 20191,595 × 2,579 (58 KB)Veikk0.ma (talk | contribs)User created page with UploadWizard

There are no pages that use this file.

File usage on other wikis

The following other wikis use this file:

Metadata