Correspondence of Dr Sebastian Ziani de Ferranti with Merz and McLellan, Patent Agents, London, regarding patents concerning the Reversing Regeneration Boiler, including a general arrangement engineering drawing, 1923. File No. 123.2. 1919-1926.
de Ferranti, Sebastian Ziani
Merz and McLellan - London
Electricity, Electrical Engineering, Electrical Equipment, Business Management, Mechanical Engineering, Boiler Industry