Image:Browns gas bubbler.png

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Description

Brown's Gas Bubbler

Source

European Patent Office

Date

1977 June 1

Author

Yull Brown

Permission
(Reusing this image)

It's an image from a patent with no copyright


Public domain 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.

File history

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Date/TimeDimensionsUserComment
current17:48, 5 April 20081,586×882 (30 KB)Omegatron (crop . remove "fig 1" [using an external editor])
07:38, 5 March 20081,993×1,152 (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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