NUVEEN TAX EXEMPT UNIT TRUST SERIES 681


333 W WACKER DRIVE, CHICAGO IL 60606


1998 SEC Filings

NUVEEN TAX EXEMPT UNIT TRUST SERIES 681, 497, 1998-11-23
NUVEEN TAX EXEMPT UNIT TRUST SERIES 681, 24F-2NT, 1998-11-10
NUVEEN TAX EXEMPT UNIT TRUST SERIES 681, 497J, 1998-07-27
NUVEEN TAX EXEMPT UNIT TRUST SERIES 681, 485BPOS, 1998-07-24


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