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Electronic typewriter
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Patent number 5,207,796
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Issue date May 4, 1993
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Ing. C. Olivetti & C., S.p.A.
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Alessandro Crotti
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Electronic typewriter
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Patent number 5,158,376
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Issue date Oct 27, 1992
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Ing. C. Olivetti & C., S.p.A.
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Crotti Alessandro
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Ink jet print head and printer
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Patent number 4,703,332
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Issue date Oct 27, 1987
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Ing. C. Olivetti & C., S.p.A.
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Alessandro Crotti
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Serial printhead ink supply
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Patent number 4,630,077
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Issue date Dec 16, 1986
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Ing. C. Olivetti & C., S.p.A.
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Pierangelo Berruti
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS