00491nam a22001457a 4500 2254 2254 200218b ||||| |||| 00| 0 eng d 621.34 M727 1476 Mollow, E. Magnetic tools and appliances in engineering production, dealing with magnetic chucks, clutches, brakes, lifting magnets, magnetic separators, and crack detectors 1st London Newnes 1942 116p. Magnetic Testing BK 0 0 ddc 0 621_340000000000000_M727 0 6055 CL CL 1953-03-19 621.34 M727 01838 2020-02-18 BK