Switches and micro switches / 
s.n. 
 -  Soviet Land Booklets,  1900 
 - p. ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronics Instrumentation; Electronics engineering; Applied physics
<br/><br/><label>Dewey Class. No.: </label>621.38154 SWI