4. Telegraphy
  5. Systems
  6. Line-clearing and circuit maintenance

Harro L. Hartmann

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Method and switching arrangement for synchronizing oscillators o

Telegraphy – Systems – Line-clearing and circuit maintenance
Patent

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Method for the non-hierarchical routing of traffic in a communic

Telephonic communications – Plural exchange network or interconnection – Connection call model
Patent

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Profile ID: LFUS-PAI-P-756031

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