Specification for radio-frequency cables. Cable data sheets
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Specification for radio-frequency cables-Cable data sheets (metric and imperial units)
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Specification for radio-frequency cables. General requirements and tests. British Government Services requirements
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Vitreous enamelled steel reflectors for electric lighting open dispersive type no 1
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Vitreous enamelled steel reflectors for electric lighting open dispersive type
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Glossary of terms used in illumination and photometry
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Glossary of terms used in illumination and photometry
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Specification for loaded and unloaded ebonite for electrical purposes
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