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Friction gear transmission
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Patent number 4,557,155
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Issue date Dec 10, 1985
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William Prym-Werke KG
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Heinz-Dieter Kopatz
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Riveting press safety
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Patent number 4,541,558
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Issue date Sep 17, 1985
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William Prym-Werke KG
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Ernst Herten
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A41 - WEARING APPAREL
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Sewing-machine attachment
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Patent number 4,493,275
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Issue date Jan 15, 1985
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William Prym Werke KG
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Albert J. Fischer
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D05 - SEWING EMBROIDERING TUFTING
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Machine with fingerguard
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Patent number 4,378,900
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Issue date Apr 5, 1983
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William Prym-Werke KG
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Otto Sauermilch
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Machine with finger protection guard
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Patent number 4,343,423
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Issue date Aug 10, 1982
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William Prym-Werke KG
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Otto Sauermilch
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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