0000100378-99-000008 DEF 14A 1 19991016 19990928 TWIN DISC INC 0000100378 3560 390667110 WI 0630 DEF 14A 34 001-07635 99718747 1328 RACINE ST RACINE WI 53403 4146384000 1328 RACINE STREET RACINE WI 53403 TWIN DISC CLUTCH CO 19770217 DEF 14A 1 000010037899000008-001-seq1-def-14a.txt PROXY STATEMENT 10/16/99