00372nam a22001337a 4500 620.9 HOW L-24, P-21 Howard, R 41127 The Works technical information service London Emmott & CO. Limited 1946 24 p. : ill. : 4 Cm 0 0 0 620_900000000000000_HOW MCE 379 ddc BK 545314 545314 0 0 ddc 0 0 MCE MCE 2014-05-21 0 620.9 HOW MCE-40734 2014-05-21 2014-05-21 BK