US2172670-Figure 1-Color

Autor/Urheber:

Russell L. Bourke

Shortlink:

https://dewiki.de/b/100080

Quelle:

Wikimedia Commons

Größe:

1496 x 1568 Pixel (699376 Bytes)

Beschreibung:

Kurbelschlaufenmotor

Kommentar zur Lizenz:

Public domainPublic domainfalsefalse

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}}.

Lizenz:

Public domain

Credit:

https://www.google.com/patents/US2172670

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