Jonespoppop.JPG
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Summary
Description Jonespoppop.JPG |
English:
Diagram of a diaphragm style pop pop boat, from Paul Jones' 1934 patent (patent 1,993,670).
|
Date | |
Source | https://patents.google.com/patent/US1993670A/en |
Author | Paul Jones |
Licensing
Public domain Public domain false false |
This work is in the
public domain
in the United States because it is a
work prepared by an officer or employee of the United States Government as part of that person’s official duties
under the terms of
Title 17, Chapter 1, Section 105
of the
US Code
.
Note
: This only applies to original works of the Federal Government and not to the work of any individual
U.S. state
,
territory
, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the
United States Postal Service
since 1978
. (See §
313.6(C)(1)
of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see
The US Mint Terms of Use
.
|
||
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. |
https://creativecommons.org/publicdomain/mark/1.0/ PDM Creative Commons Public Domain Mark 1.0 false false
Original upload log
The original description page was
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. All following user names refer to en.wikipedia.
- 2010-01-31 09:10 Engineer comp geek 689×298× (28878 bytes) Diagram of a diaphragm style pop pop boat, from Paul Jones' 1934 patent (patent 1,993,670).