Technical manual for mark 227 mod o gyrocompass equipement 
/ Sperry Marine Systems Division 
 - [Virginia] :  Sparry Rand Corporation  , [1969] 
 -  planos ;  28 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tecnología--Girocompás<br/>Tecnoloxía--Compás
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Manual