File:Flodin direct reduction furnace.png

Original file(1,075 × 900 pixels, file size: 85 KB, MIME type: image/png)

Summary

Description
Français : Brevet de Henning Flodin Gustav (US1691272), sur un four électrique de réduction directe.
English: Henning Flodin Gustav patent (US1691272), describing its direct reduction furnace, or Flodin process.
Date
Source Patent US1691272A : Method of producing metals and metal alloys low in carbon
Author Gustaf Henning Flodin (1871-1940)

Licensing

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.

The original patent should be checked for the presence of such language before an assumption is made that the contents are in the public domain. (This template can be replaced by {{PD-US-patent-no notice}} in such cases.)


العربيَّة | English | español | 中文 | +/−

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

13 November 1928Gregorian

File history

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

Date/TimeThumbnailDimensionsUserComment
current19:10, 8 November 2015Thumbnail for version as of 19:10, 8 November 20151,075 × 900 (85 KB)Borvan53User created page with UploadWizard
The following pages on the English Wikipedia use this file (pages on other projects are not listed):

Global file usage

The following other wikis use this file:

Metadata