Combination fluid filter and valve assembly
United States Patent 3332259
Inventors:
Zylstra, John J.
Publication Date:
07/25/1967
Other Classes:
210/409, 134/104.400, 210/167.010, 134/111, 210/356, 210/791
International Classes:
B01D35/10; D06F39/10; B01D35/00; D06F39/00