Patent classifications
C
CHEMISTRY; METALLURGY
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C25
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
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C25B
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
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13/00
Diaphragms; Spacing elements
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C25B13/04
characterised by the material
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C25B13/05
based on inorganic materials
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C25B13/07
based on ceramics
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