Jump to content

File:US1330701-Figure 1.png

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

Original file (1,672 × 720 pixels, file size: 20 KB, MIME type: image/png)

Description
English: Bubble-pipe
Date
Source https://www.google.com/patents/US1330701
Author John L. Gilchrist
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

File history

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

Date/TimeThumbnailDimensionsUserComment
current20:06, 26 December 2016Thumbnail for version as of 20:06, 26 December 20161,672 × 720 (20 KB)MichaelFrey{{Information |Description ={{en|1=Bubble-pipe}} |Source =https://www.google.com/patents/US1330701 |Author =John L. Gilchrist |Date =1918 |Permission = |other_versions = }} {{PD-US-patent-no notice}}

The following page uses this file:

Metadata