Revision history of "File:Patent-US-2293621.pdf"

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  • (cur | prev) 23:09, 9 August 2013Piccardi (talk | contribs). . (410 bytes) (+75)
  • (cur | prev) 23:03, 9 August 2013Piccardi (talk | contribs). . (335 bytes) (+335). . ({{PatentInfo |Inventor=John William Para, Julius Kahn |Assignee=David Kahn Inc |Country=US |ApplicationNum=329958 |ApplicationDate=1940-04-16 |PatentNum=2293621 |PatentDate=1942-08-18 |PriorityDate=1940-04-16 |Titolo=Mechanical pencil |Marca=Wearever |...)
Facts about "Patent-US-2293621.pdf"
Application dateApril 16, 1940 +
Application number329958 +
Assigned toDavid Kahn Inc +
Invented byJohn William Para + and Julius Kahn +
Mention patentFile:Patent-US-2093919.pdf + and File:Patent-US-2203093.pdf +
Patent dateAugust 18, 1942 +
Patent descriptionMatita meccanica +
Patent number2293621 +
Patent titleMechanical pencil +
Patented byWearever +
Patented inUS +
Priority dateApril 16, 1940 +