- Title'Improvements in electric telegraphic circuits'
- ReferenceUK0108 SC MSS 009/1/16
- Date1881-02-25
- Scope and ContentArticle, with diagrams. See also SC MSS 009/1/12.
- Physical descriptionNumber of pieces: 1
- LanguageEnglish.
- SubjectDuplex telegraphy
- Conditions governing accessOpen access
- Level of descriptionfile
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