000 00262pam a2200121a 44500
082 _a621.31736
_bT722C
100 _aTrencham, H.
245 1 _aCIRCUITS BREAKING
260 _aLondon
_bB. S. Pub.
_c1953
300 _a206
964 _gCIRC
997 _a2255 s C
999 _c416057
_d416057