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Display titleFile:Patent-US-2293622.pdf
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Page creatorPiccardi (talk | contribs)
Date of page creation23:12, 9 August 2013
Latest editorPiccardi (talk | contribs)
Date of latest edit23:43, 9 August 2013
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Fatti riguardanti Patent-US-2293622.pdf
Application datesettembre 10, 1940 +
Application number356235 +
Assigned toDavid Kahn Inc +
Invented byJohn William Para +
Mention patentFile:Patent-US-2293623.pdf +, File:Patent-US-2293621.pdf + e File:Patent-US-2312928.pdf +
Patent dateagosto 18, 1942 +
Patent descriptionMatita meccanica +
Patent number2293622 +
Patent titleMechanical pencil +
Patented byWearever +
Patented inUS +
Priority datesettembre 10, 1940 +