LOW-FRICTION PACKING OR BEARING MATERIAL
United States Patent 3480547
Inventors:
Dyk, John Van W.
Publication Date:
11/25/1969
Other Classes:
28/169, 442/148, 427/389.900, 428/422
International Classes:
B65D65/42; D04H1/64; F16C33/20; F16J15/20; B65D65/38; F16C33/04; F16J15/18; C10M7/28; F16D69/00