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Facts about "Patent-US-378986.pdf"
Application dateAugust 4, 1886 +
Application number209952 +
Assigned toWilliam W. Stewart +
Invented byWilliam W. Stewart +
Mention patentFile:Patent-US-214795.pdf +, File:Patent-US-222959.pdf +, File:Patent-US-237454.pdf + and File:Patent-US-314547.pdf +
Patent dateMarch 6, 1888 +
Patent descriptionProto-stilografica +
Patent number378986 +
Patent titleFountain-pen +
Patented bySwan +
Patented inUS +
Priority dateAugust 4, 1886 +