Patent DE506337C successfully refreshed from Google Patents.
DE506337C
Expired / Lapsed
DE
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Device for cleaning wastewater with activated sludge
Assignee: FRIEDRICH SIERP DR
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Filing: —
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Granted: 1930-09-02
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Expires: 1947-09-02
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-25 09:45
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/1205; C02F3/121; Y; Y02; Y02W; Y02W10/00; Y02W10/10
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