Any union or association of workers engaged in the operation of such industries, employments, public utilities or common carriers, which shall incorporate under the laws of this state shall be considered and recognized in all its proceedings as a legal entity by the secretary of labor and may appear before the secretary through and by its proper officers, attorneys or other representatives. The right of such corporations, and of such unincorporated unions or associations of workers, to bargain collectively for their members is hereby recognized. The individual members of such unincorporated unions or associations, who shall desire to avail themselves of such right of collective bargaining, shall appoint in writing some officer or officers of such union or association, or some other person or persons as their agents or trustees with authority to enter into such collective bargains and to represent the individuals in all matters relating thereto. Such written appointment of agents or trustees shall be made a permanent record of such union or association. All such collective bargains, contracts, or agreements shall be subject to the provisions of Kan. Stat. Ann. § 44-609, and amendments thereto.