Two files containing details of experiments on Artificial Cables and Duplex Signalling, 1923-1927. Xerox copies of extracts from the records of the Eastern Telegraph Co. relating to Ben Davies's patents, salary, expenses, employment record and retirement, 1902-1929. (E.T.C. Minute Book', no. 17, Indexes to E.T.C. Minute Books, nos. 11, 12, 17, Common Seal Book, no. 13, and Eng./Staff File). The call number of the copies is NLW Facsimile 388.
Two files containing details of experiments on Artificial Cables and Duplex Signalling, 1923-1927. Xerox copies of extracts from the records ...,
This material is held atNational Library of Wales / Llyfrgell Genedlaethol Cymru
- Reference
- GB 210 BOX 14/13-14.
- Alternative Id.(alternative) vtls005004295(alternative) ISYSARCHB1
- Dates of Creation
- 1923-1927.
- Location
- ARCH/MSS (GB0210)
Scope and Content
Note
Preferred citation: BOX 14/13-14.
Additional Information
Published