Revision history of "File:Patent-US-2186869.pdf"

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Fatti riguardanti Patent-US-2186869.pdf
Application dateluglio 25, 1936 +
Application number92626 +
Assigned toDavid Kahn Inc +
Invented byDavid Kahn +
Mention patentFile:Patent-US-2186870.pdf +, File:Patent-US-2186027.pdf + e File:Patent-US-2203093.pdf +
Patent dategennaio 9, 1940 +
Patent descriptionMatita meccanica +
Patent number2186869 +
Patent titleMechanical magazine pencil +
Patented byWearever +
Patented inUS +
Priority dateluglio 25, 1936 +