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Facts about "Patent-US-2163515.pdf"
Application dateJune 22, 1937 +
Application number155103 +
Assigned toKurt Fend +
Invented byKurt Fend +
Patent dateJanuary 25, 1938 +
Patent descriptionMatita meccanica multipla +
Patent number2163515 +
Patent titleInterchangeable lead pencil +
Patented byFend +
Patented inUS +
Priority dateJuly 23, 1936 +
Same invention ofFile:Patent-FR-823652.pdf + and File:Patent-GB-482097.pdf +