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Facts about "Patent-US-2167815.pdf"
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Application dateMarch 10, 1938 +
Application number195136 +
Assigned toMontblanc-Simplo G.m.b.H. +
Invented byErnst Rösler +, Heinrich Schwarting + and Konrad Kressel +
Mention patentFile:Patent-US-1903022.pdf +
Patent dateAugust 1, 1939 +
Patent descriptionCaricamento a stantuffo telescopico +
Patent number2167815 +
Patent titleFountain pen +
Patented byMontblanc +
Patented inUS +
Priority dateApril 2, 1937 +
Same invention ofFile:Patent-DE-683548.pdf + and File:Patent-GB-502381.pdf +
Used for featurePiston filler +