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H04M 19/06

Current supply arrangements for telephone systems in which current supply sources at subordinate switching centres are charged from the main exchange

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Edits on 16 Mar, 2022
"Entity importer update"
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Golden AI
edited on 16 Mar, 2022
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H04M 19/00
Edits on 5 Mar, 2022
"Created via: Entity Importer"
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Golden AI
created this topic on 5 Mar, 2022
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 H04M 19/06

Current supply arrangements for telephone systems in which current supply sources at subordinate switching centres are charged from the main exchange

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Cooperative Patent Classification
Website
http://data.epo.org/linked-data/def/cpc/H04M19-06

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