00511nam a22001697a 4500 998 998 200106b ||||| |||| 00| 0 eng d 621.183 A7351 558 Armstrong, H. C. Boiler management maintenance and inspection : A handbook for boiler owners and boiler attendants 2nd London Charles Griffin 1948 xii,160p. 5.13 Steam Boiler Inspection 561 Lewis, C. V. BK 0 0 ddc 0 621_183000000000000_A7351 0 3294 CL CL 1952-10-30 Progressive 621.183 A7351 00664 2020-01-06 BK 0 1 ddc 0 621_183000000000000_A7351 0 11870 CL CL 1952-10-22 Progressive 621.183 A7351 00665 2020-07-16 BK