Image:Stahlberg-patent1885.jpg

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[edit] Summary

Patent filing diagram; old enough to be in the public domain.

[edit] Licensing

Public license

This image is in the public domain in the United States. In most cases, this means that it was first published in the United States prior to January 1, 1923 (see the talk page for more cases). Other jurisdictions may have other rules, and this image might not be in the public domain outside the United States. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.

File history

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