Jump to content

File:Patent US311212 1.png

Page contents not supported in other languages.
This is a file from the Wikimedia Commons
From Wikipedia, the free encyclopedia

Original file (1,986 × 3,138 pixels, file size: 260 KB, MIME type: image/png)

Summary

Description
English: Patent for a wood pulp grinding machine for paper making, patented by Ashley B. Tower in 1885.
Date
Source Google Patents; US311212A
Author A.B. Tower
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 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}}.

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

inception

27 January 1885Gregorian

File history

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

Date/TimeThumbnailDimensionsUserComment
current02:12, 23 May 2018Thumbnail for version as of 02:12, 23 May 20181,986 × 3,138 (260 KB)Simtropolitan{{Information |description ={{en|1=Patent for a wood pulp grinding machine for paper making, patented by {{w|Ashley B. Tower}} in 1885.}} |source =[https://patents.google.com/patent/US311212A/en Google Patents; US311212A] |author =A.B. Tower |date =1885-01-27 |permission ={{PD-US-patent-no notice}} }} Category:D. H. & A. B. Tower Category:Pulp and paper industry Category:Patents from the United States

The following page uses this file:

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.

If the file has been modified from its original state, some details may not fully reflect the modified file.

Retrieved from "https://en.wikipedia.org/wiki/File:Patent_US311212_1.png"