Every corporation shall keep at its principal office in this state, or if its principal office is not in this state at its principal business office in this state, the original or a copy of its bylaws as amended to date, which shall be open to inspection by the shareholders at all reasonable times during office hours. If the principal office of the corporation is outside this state and the corporation has no principal office in this state, it shall upon the written request of any shareholder furnish to such shareholder a copy of the bylaws as amended to date.