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Glover Brothers of Mossley, near Manchester.
1922 Maker of steel wire ropes and guide rods for mining, wire ropes for shipping and general purposes aerial ropeways and aeroplane cables. Partners: Robert B. Glover and B. Harvey Glover.
1937 Makers of steel wire ropes, aeroplane cables and flexible cords.
1958 Transferred to new company Arthur Lee Investments formed to hold trade investments in order to mitigate the effects of any possible renationalisation of the steel industry
Presumably later became Glover Group, maker of aerial ropeways and mechanical handling systems
NB this is not the same as the fruit trader and importer of London with similar name.