Hi - in an advert for a mining machinery company for the early 1900s I have seen mention of:
Burnett's Improved Patent Automatic Coal Washer;
Burnett's Hydro-Extractor for Drying Washed Coal;
Burnett's Corrugated Tubbing.
Can any list member shed any light on Burnett? Has anyone come across any reference to the use of 'corrugated tubbing'?
Alan Vickers.
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