Directors' Meeting; Waiver of Notice

When all the directors of a corporation are present at any directors' meeting, however called or noticed, and sign a written consent thereto, on the record of such meeting, or if the majority of the directors are present, and if those not present sign in writing a waiver of notice of such meeting, whether prior to or after the holding of such meeting, which said waiver shall be filed with the secretary of the corporation, the transactions of such meeting are as valid as if had at a meeting regularly called and noticed.