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Facts about "Patent-US-1999177.pdf"
Application dateJanuary 31, 1933 +
Application number654471 +
Assigned toThe Esterbrook Steel Pen Manfacturing Co. +
Invented byLeon H. Ashmore +
Patent dateApril 30, 1935 +
Patent descriptionPennino intercambiabile +
Patent number1999177 +
Patent titleFountain pen +
Patented byEsterbrook +
Patented inUS +
Priority dateJanuary 31, 1933 +
Used for featurePennino +