000 00542cam a2200145u 4500
082 _a621.3132
_bCAS
_cD
100 1 _aCase, John. [from old catalog]
_941336
245 1 4 _aThe theory of direct-current dynamos and motors,
260 _aCambridge,
_bW. Heffer & sons, ltd.,
_c1921.
300 _a2 p.l., vii-xiii, 196 p.,
_b1 l. illus., 2 fold. pl., diagrs.
_c23 cm.
526 _a0
_b0
_c0
_d621_313200000000000_CAS
650 0 _aElectric generators
_xDirect current.
_941337
650 0 _aElectric motors, Direct current.
_941338
942 _2ddc
_cBK
999 _c545475
_d545475