Elektrische Uhren :  deutsche reichs Patente, 1877-1941. 

 - 1 volume (various pagings) ;  30 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Clocks and watches, Electric--Germany--1877-1941.--Patents
<br/><br/><label>Subjects--Index Terms: </label>electrical electromechanical patent reischspatent Patent Timekeeper (general) Germany Reference Government 
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Patents.