P. F. Allan

Discussion on "Large batteries for power purposes"

C. H. Wordingham, Harry Brazil, R. D. Spurr, .

Discussion on ¿The `Cyc-Arc¿ process of automatic electric welding¿

W. Cramp, C. C. Garrard, Andrew Robertson, 1922 .

Discussion on 'Continuous-current boosters and balancers'

W. W. Lackie, A. P. Robertson, W. B. Sayers, .