A brief survey of a large business / Plessey
List of oceanic depths and serial temperature observationd : received at the admiralty during the year 1898, from H.M surveying ships, indian marine survey and british submarine telegraph companie / Hydrographic Department
Contrato de concessão / Companhia Portuguesa Rádio Marconi
Testing and jointing of air space underground cables which required to be loaded and balanced for fuperposed telefone working / Post Office Engneering Department
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