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Dot matrix print head
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Patent number 5,186,552
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Issue date Feb 16, 1993
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Microlys S.p.A.
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Gino Stevenin
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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-
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Ballistic wire matrix print head
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Patent number 4,407,591
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Issue date Oct 4, 1983
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Ing. C. Olivetti & C., S.p.A.
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Contardo Adamoli
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Wire printing device
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Patent number 4,341,478
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Issue date Jul 27, 1982
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Ing. C. Olivetti & C., S.p.A.
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Francesco Bernardis
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Wire printing device
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Patent number 4,285,603
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Issue date Aug 25, 1981
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Ing. C. Olivetti & C., S.p.A.
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Francesco Bernardis
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS