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DE339676C Expired / Lapsed DE ⏱️ 0.0 years remaining

Device for bringing about a zone shift running in a circular path between two shells on grinding and polishing machines, in particular for optical lenses

Assignee: Wernicke and Co GmbH
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Filing: 1920-08-08
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Granted: 1921-07-30
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Expires: 1940-08-08
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Abstract

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Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-11-04 03:44
CPC Classifications
B; B24; B24B; B24B13/00; B24B13/02; B24B13/023

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