Ludwig, Lawrence P. <br/>
       Experimental study of pump and seal characteristics of helical groove geometry incorporated in a combined bearing and pump [NASA] 
 / Lawrence P. Ludwig, Thomas N. Strom and Robert L. Johnson 
 .- Washington: National Aeronautics and Space Administration,  1969 
.- ( National Aeronautics and Space Administration (NASA)   
<br/><u>Subject Headings:</u> <br/>Pump experiment;
<br><U>Copy Details:</u><br> Acc. No.: <b>TR015290</b>, Full Call No.: ,   Item type:  Technical Report , Location: COMPACT STORAGE (BASEMENT), <br><b>------------------------- --------------------- ------ --------- ------- ------- --------- -------- </b><br>