Revision history of "File:Patent-US-1892145.pdf"

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  • (cur | prev) 15:08, 5 August 2012Piccardi (talk | contribs). . (370 bytes) (+370). . ({{PatentInfo |Inventor=Walter E. Guyot |Assignee=The Parker Pen Company |Country=US |ApplicationNum=464692 |ApplicationDate=1930-06-28 |PatentNum=1892145 |PatentDate=1932-12-27 |PriorityDate=1930-06-28 |Titolo=Mechanical pencil |Marca=Parker |Descrizio...)