1977-12-20 /AP-4172F-BM/01/3a-documentation/fe.tco 1977-12-20 /BB-H138A-BM/01/3a-documentation/fe.tco 1980-01-25 /BB-4172G-BM/01/4-documentation/fe.tco 1980-01-25 /BB-5255D-BM/01/4-documentation/fe.tco 1980-01-25 /BB-H138B-BM/01/4-documentation/fe.tco 1982-03-22 /BB-4172H-BM/01/4-1-documentation/fe.tco 1982-03-22 /BB-H138C-BM/01/5-documentation/fe.tco 1982-03-22 /BB-H138D-BM/01/5-1-documentation/fe.tco