Invesco Unit Trusts, Municipal Series 1331: 485BPOS filed May 27, 2021

Name: Invesco Unit Trusts, Municipal Series 1331 485BPOS (0001528621-21-000805)
Creator: Invesco Unit Trusts, Municipal Series 1331
Published: 2021-05-27

Form type: 485BPOS
Filing date: May 27, 2021
Accession number: 0001528621-21-000805
Filer: Invesco Unit Trusts, Municipal Series 1331 (CIK 1689972)