Patent DE339676C successfully refreshed from Google Patents.
DE339676C
Expired / Lapsed
DE
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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
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-04 16:32
CPC Classifications
B; B24; B24B; B24B13/00; B24B13/02; B24B13/023
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