Patents for inventions abridgments of specifications 25.001-30.000 / 
Patent Office, Govt. of India 
 - Delhi :  Manager of Publications ,  [n. d.] 
 - vi, 77 p. :  ill ;  24 cm. 
<br/><br/> 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 
<br/><br/><label>ISBN: </label> Rs. 1.00 
<br/><br/><label>Dewey Class. No.: </label>608.754