Where two or more labor unions have adopted an allied crafts union label, and granted the use of it to any person, and conflict has arisen between such grantee and any one or more of the organizations having an interest in the allied crafts union label, any one or more of the labor unions interested in the union label may rescind the right of the grantee to use the union label, and the continued use of it, after notice in writing that the right thereof has been rescinded by any of the labor unions interested, shall render the grantee liable to the penalties of this chapter.
54 Pa.C.S. § 1322