Revision history of "File:Patent-US-1842503.pdf"

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  • (cur | prev) 13:53, 21 August 2013Piccardi (talk | contribs). . (373 bytes) (+18)
  • (cur | prev) 16:28, 28 July 2012Piccardi (talk | contribs). . (355 bytes) (+355). . ({{PatentInfo |Inventor=Daniel V. Bowen |Assignee=L. E. Waterman Company |Country=US |ApplicationNum=528669 |ApplicationDate=1931-04-08 |PatentNum=1842503 |PatentDate=1932-01-26 |PriorityDate=1931-04-08 |Titolo=Penholder for writing instruments |Marca=W...)