Manuals
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Kern & Co. AGInstructions for Use of Hatching-Apparatus No. 1205.
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Kern & Co. AGInstructions for the use of reducing compasses 1091, 1092, 1093.
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Kern & Co. AGInstructions for the use of Reducing Compasses 1091 - 1095.
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Kern & Co. AGReduktions-Zirkel No. 1096 mit Millimeter-Teilung.
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Kern & Co. AGInstruction for the Use of the Dotting Pen 1069.
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Kern & Co. AGPRONTOGRAPH instructions for the use.
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