0000889810-97-000155 424B3 1 19970627 NONE PUROFLOW INC 0000100591 3569 131947195 DE 0131 424B3 33 333-19701 97631530 16559 SATICOY STREET VAN NUYS CA 91406 8187561388 16559 SATICOY STREET VAN NUYS CA 91406 ULTRA DYNAMICS CORP 19830522 424B3 1 000088981097000155-001-seq1-424b3.txt