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Actions	Details Remove from selection Add to selection Title Method of duplex working Reference UK0108 NAEST 020/344 Date n.d. Scope and Content Manuscript notes on duplex working, by H C Mance. Refers to expermients carried out between Currachee and Gwaddur, also Currachee and Ormara. Physical description Number of pieces: 1, Pages/folios: 1 Language English. Persons keyword Mance Sir Henry Christopher Subject Telegraph equipment, Karachi, Ormara, Gwaddur Conditions governing access Open Level of description file Hierarchy browser 110000001 NATIONAL ARCHIVE FOR ELECTRICAL SCIENCE AND TECHNOLOGY contains 322 parts UK0108 NAEST 020 Baker Collection: Papers of Sir William Henry Preece contains 213 parts UK0108 NAEST 020/344 Method of duplex working

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Title
Method of duplex working
Reference
UK0108 NAEST 020/344
Date
n.d.
Scope and Content
Manuscript notes on duplex working, by H C Mance. Refers to expermients carried out between Currachee and Gwaddur, also Currachee and Ormara.
Physical description
Number of pieces: 1, Pages/folios: 1
Language
English.
Persons keyword
Mance Sir Henry Christopher
Subject
Telegraph equipment, Karachi, Ormara, Gwaddur
Conditions governing access
Open
Level of description
file

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