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Fatti riguardanti Patent-US-D107708.pdf
Application datemarzo 18, 1937 +
Application number68266 +
Assigned toThe Parker Pen Company +
Invented byPaul M. Ressinger + e Ivan D. Tefft +
Patent datedicembre 28, 1937 +
Patent descriptionFermaglio Royal Challenger +
Patent numberD107708 +
Patent titleDesign for a fountain pen and pencil clip +
Patented byThe Parker Pen Company +
Patented inUS +
Priority datemarzo 18, 1937 +
Used for modelChallenger +