Discus Harrowianus
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Laminae crateris machinarum agriculturalium
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Laminae discoideae crateris 560X6, partes crateris rotatoriae Lemken, laminae discoideae 810×10
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3490467 Laminae discoideae incisae 620×6, sarculum discoidea 560×6, lamina discoidea pro partibus Lemken
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Societas fabricatrix laminarum discorum crateris, partes crateris rotatoriae Lemken, laminae discorum 560×6
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Laminae discoideae, distributor partium crateris rotatoriae Lemken, distributor partium crateris discoideae Lemken 3490467
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3490467 Laminae Discales Incisae 24″ X 6 Mm, 5 Foramina
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Laminae discoideae 22″ 24″ 26″, distributor partium crateris rotatoriae Lemken, distributor partium crateris discoideae Lemken
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Discus crateris 6 foraminum, laminae incisae 24″ x 6 mm
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Discus sarculus accessorius Lemken altae qualitatis 22" x 6 mm