DE15547C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Use of sulfuric acid to absorb the sulfuric acid contained in the roasting gases from zinc, lead or copper smelters in towers or boxes made of stone, metal or clay. (2
Assignee: Dr. M. FREYTAG, Prof. in Bonn
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Filing: —
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Granted: 1900-01-01
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Expires: 1917-01-01
Abstract
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Inventors
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Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-03 00:43
CPC Classifications
C; C22; C22B; C22B7/00; C22B7/02; Y; Y02; Y02P; Y02P10/00; Y02P10/20
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