000 00484cam a22001571a 4500
082 _a669.3
_bCOP
110 2 _aCopper Development Association.
_940948
245 1 0 _aCopper alloy resistance materials.
260 _aLondon :
_bCopper Development Association,
_c[1943]
300 _a43 p. :
_bill., tables ;
_c22 cm.
526 _a0
_b0
_c0
_d669_300000000000000_COP
650 0 _aCopper alloys.
_945042
650 0 _aElectric resistance.
_945043
650 0 _aMCE
_9379
942 _2ddc
_cBK
999 _c548654
_d548654