Revision history of "File:Patent-GB-171154.pdf"

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  • (cur | prev) 08:16, 27 August 2016Piccardi (talk | contribs)m . . (466 bytes) (-2). . (Sostituzione testo - " " con " ")
  • (cur | prev) 23:00, 18 March 2014Piccardi (talk | contribs). . (468 bytes) (+468). . ({{PatentInfo |Inventor=William P. De Witt |Assignee=William Price De Witt |Country=GB |ApplicationNum=23159/20 |ApplicationDate=1920-08-06 |PatentNum=171154 |PatentDate=1921-11-07 |PriorityDate=1920-04-19 |Titolo=Improvements in pencil holders |Marca=D...)
Facts about "Patent-GB-171154.pdf"
Application dateAugust 6, 1920 +
Application number23159/20 +
Assigned toWilliam Price De Witt +
Invented byWilliam P. De Witt +
Patent dateNovember 7, 1921 +
Patent descriptionMatita meccanica +
Patent number171154 +
Patent titleImprovements in pencil holders +
Patented byDe Witt-La France +
Patented inGB +
Priority dateApril 19, 1920 +
Same invention ofFile:Patent-US-1472962.pdf +, File:Patent-FR-526035.pdf + and File:Patent-DE-349147.pdf +