Patent DE686441C successfully refreshed from Google Patents.
DE686441C
Expired / Lapsed
DE
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Cast iron pipe with internal corrosion protection layer
Assignee: Deutsche Eisenwerke AG
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Filing: 1935-10-29
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Granted: 1940-01-09
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Expires: 1955-10-29
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-03 03:24
CPC Classifications
C; C23; C23D; C23D5/00; B; B65; B65G; B65G53/00; B65G53/34; B65G53/52; F; F16; F16L; F16L9/00; F16L9/14
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