Report on the continuance of protection to the piston assembly (pistons, piston rings and gudgeon pins) industry bombay 

 - Delhi  The Manager           1957 
 - 42p  cm. 
<br/><br/> PTC.318.(N)/510); App.: 23-42p 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X9(D643):531.2.N57t, J7