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Facts about "Patent-US-1300849.pdf"
Application dateMay 10, 1918 +
Application number233692 +
Assigned toDe Witt La France Co. +
Invented byDavid J. La France + and William P. De Witt +
Patent dateApril 15, 1919 +
Patent descriptionBlocco afflusso inchiostro +
Patent number1300849 +
Patent titleFountain-pen +
Patented byDe Witt-La France +
Patented inUS +
Priority dateMay 10, 1918 +