Patent DE506544C successfully refreshed from Google Patents.
DE506544C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Generation and revitalization of active coal
Assignee: NAAMLOOZE VENNOOTSCHAP NORIT V
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Filing: 1928-07-19
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Granted: 1930-09-05
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Expires: 1948-07-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-28 17:53
CPC Classifications
C; C01; C01B; C01B32/00; C01B32/30; C01B32/312; C01B32/336
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