All religious corporations or churches authorized, prior to July 1, 1962, to use or be known by a name or names including the words “American Evangelical Lutheran Church” or “The Augustana Evangelical Lutheran Church” or “The Suomi Synod” or “The Finnish Evangelical-Lutheran Church of America” or “The United Lutheran Church in America” and all societies directly connected therewith, are authorized to change their names to “Lutheran Church in America”; and all gifts, bequests and devises to, contracts with, conveyances to or by, or other acts affecting any such religious corporation or church by either the name used by it or by which it was known before this change shall be valid; and nothing contained herein shall be deemed to limit, change, affect or alter any other existing right, power, property, obligation, liability or duty of any such religious corporation or church.