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This following message posted by User:64.12.116.68 probably belongs to the talk page. -- Edcolins 08:13, 24 February 2006 (UTC) reply

facts.there was no selling or reselling of the original patent office collection owned by the u s patent model foundation a 501c3 org. since 1989when it obtained title and possession. many models have been acquired since then.some models are being offered on ebay the bulk of the collection has been in the process of identfication and cleanup prior to a campaign to return the models to local and state museums where the inventors resided in the 19th century.contact. ifo. US Patent model foundation p.o. box26065 alexandria va.22313 703 9427221.

Added on July 24, 2009 I believe that the USPTO still requires models for devices that purport to be perpetual motion machines (violate the second law of Thermodynamics), ... —Preceding unsigned comment added by 71.139.172.207 ( talk) 20:01, 24 July 2009 (UTC) reply

In this some text was copy/paste from here -- Mdd ( talk) 00:19, 19 October 2009 (UTC) reply