33 : Telecommunications. Audio and video engineering

33.040 : Telecommunication systems

33.040.01

Telecommunication systems in general

33.040.20

Transmission systems

33.040.30

Switching and signalling systems

33.040.35

Telephone networks

33.040.40

Data communication networks

33.040.50

Lines, connections and circuits

33.040.60

Powerline telecommunications

33.040.99

Other equipment for telecommunication systems
Relevance Date (newest first) Date (oldest first) Reference A → Z Reference Z → A
15 30 45 60
BS 1050:1945

BS 1050:1945

Withdrawn Most Recent

Visual indicator lamps

€269.00

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BS 174 to 181:1938

BS 174 to 181:1938

Withdrawn Most Recent

Overhead line-wire material (non ferrous) for telegraph and telephone purposes

€269.00

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BS 1050:1942

BS 1050:1942

Withdrawn Most Recent

Visual indicator lamps

€269.00

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BS 469:1932

BS 469:1932

Withdrawn Most Recent

Specification for electric lamps for railway signalling

€269.00

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BS 204:1930

BS 204:1930

Withdrawn Most Recent

Terms and definitions used in connection with telegraphs and telephones

€269.00

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BS 174 to 181:1927

BS 174 to 181:1927

Withdrawn Most Recent

Overhead line-wire material (non ferrous) for telegraph and telephone purposes

€269.00

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BS 204:1924

BS 204:1924

Withdrawn Most Recent

Terms and definitions used in connection with telegraphs and telephones

€269.00

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BS 174 to 181:1923

BS 174 to 181:1923

Withdrawn Most Recent

Overhead line-wire material (non ferrous) for telegraph and telephone purposes

€269.00

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15 30 45 60