Description  Claims  Drawing  Cited references 

US6268726B   [0009] 
US5705927A   [0010] 
US5557201A   [0010] 
US5280243A   [0010] 
US6362619B   [0010] 
US8373412B   [0010] 
US8143887B   [0010] 
US2012013335A1   [0012] 
EP0835463A   [0106] 

Oil & Gas Science and Technology - Rev. IFP   [0002] 
The Magnetic-Resonance While-Drilling Tool: Theory and Operation   [0008]