Image:Browns gas bubbler.png
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| This is a file from the Wikimedia Commons. The description on its description page there is shown below.
|
| Description |
Brown's Gas Bubbler |
|---|---|
| Source | |
| Date |
1977 June 1 |
| Author |
Yull Brown |
| Permission (Reusing this image) |
It's an image from a patent with no copyright |
 |
In most countries, the text and illustrations of patents are excused for copyright and can be considered to be in the public domain. In some countries, such as the United States, text of patents may be copyrighted but is free for distribution in any form. The actual invention depicted may however still be patented if its patent has not expired. |
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 17:48, 5 April 2008 | 1,586×882 (30 KB) | Omegatron | (crop . remove "fig 1" [using an external editor]) |
| 07:38, 5 March 2008 | 1,993×1,152 (79 KB) | Mox83 | ({{Information |Description= Brown's Gas Bubbler |Source= [http://v3.espacenet.com/origdoc?DB=EPODOC&IDX=GB1475549&F=0&QPN=GB1475549&RPN=NL7409795&DOC=d5a84ff69d5b16cd8d4b0bc78f36ddad54 European Patent Office] |Date= 1977 June 1 |Author= Yull Brown |Permis) |
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