TY - BOOK ED - India. TI - Patents for inventions abridgments of specifications 25.001-30.000 U1 - 608.754 PY - 0000///[n. d.] CY - Delhi PB - Manager of Publications N1 - Group LIX Electric switches and switch gear, motor control systems 1.Electric switches and electromagnetic and thermal cutruts (excepting selector switches for telephones) 2.Heating by electricity 3.Motor control systems and motor and like controllers electric ER -