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AT176184B
Expired / Lapsed
AT
⏱️ 0.0 years remaining
Process for the purification of waste water from the pulp, paper and cardboard industries
Assignee: Zschimmer & Schwarz Vormals Ch
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Filing: 1952-03-22
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Granted: 1953-09-25
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Expires: 1972-03-22
Abstract
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AT
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2026-10-30 16:15
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