00549cam a22001811i 4500 669.3 COP L-17, P-21 CDA 25800 Copper Development Association. 40948 Copper in instrumentation. CDA Radlett, Herts : Copper development association 1955. 152 p. ill. 24 cm Its C. D. A. publication 0 0 0 669_300000000000000_COP Copper. 40949 MCE 379 Physical instruments. 39824 ddc BK 548590 548590 0 0 ddc 0 0 MCE MCE 2014-09-03 1 1 669.3 COP MCE-34 2014-09-11 2014-09-05 2014-09-03 BK