00302nam a22001217a 4500003000400000005001700004008004100021020001500062040000800077082001400085100002300099245005800122OSt20220126155906.0220126b        |||||||| |||| 00| 0 eng d  a0130417742  cH U  a621.31042  aHubert Charles I.   aOperating, Testing, And Of Electrical Power Apparatus