72390729
Apr 23, 1971
Jun 27, 1972
FERROFLUIDICS CORPORATION
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LIQUID MEDIUM HAVING A HIGH MAGNETIZATION VALUE, FOR EXAMPLE, A DISPERSION OF MAGNETIC PARTICLES IN A FLUID CARRIER USED, FOR EXAMPLE, IN SHAFT SEALS, BEARINGS, AND GAMES
HERMETIC SHAFT SEALS EMPLOYING A MAGNETIC FLUID