Revision history of "File:Patent-US-841475.pdf"

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  • (cur | prev) 17:28, 15 August 2013Piccardi (talk | contribs). . (462 bytes) (+122)
  • (cur | prev) 19:03, 23 July 2012Piccardi (talk | contribs). . (340 bytes) (+340). . ({{PatentInfo |Inventor=Paul E. Wirt |Assignee=Paul E. Wirt |Country=US |ApplicationNum=311421 |ApplicationDate=1906-04-13 |PatentNum=841475 |PatentDate=1907-01-15 |PriorityDate=1906-04-13 |Titolo=Self-filling fountain-pen |Marca=Wirt |Descrizione=Caric...)