The A. A. MacPherson Co. Inc., Canton, Mass., and Electro Lines Inc., Syracuse, N.Y., have agreed to a joint sales and marketing alliance in the upstate New York territory. The agencies currently share responsibility in New England and upstate New York for several manufacturers, including Republic Conduit, Ipex Electrical Systems, Robroy Industries/ECN Korns and Tork.

Essex Electrical Products, Fort Wayne, Ind., has appointed three new manufacturers representatives in the Middle Atlantic. Thea & Schoen Inc., Clifton, N.J., will represent Essex in the metro New York and New Jersey marketplace. William B. Bleiman & Sons Inc., Philadelphia, will represent Essex in eastern Pennsylvania, southern New Jersey, and Delaware. R.C. Colerick Inc., Arnold, Md., will represent Essex in Maryland, Washington D.C., and northern Virginia.

Alkco Lighting, Franklin Park, Ill., has appointed J.S. Cotney Inc., Birmingham, Ala., as the representative organization for northern and central Alabama.

Ardee Lighting, Shelby, N.C., has appointed R.L. Mlazgar Associates Inc., Eden Prairie, Minn., to represent Ardee Lighting throughout Minnesota, North Dakota, South Dakota and western Wisconsin.

LAM Lighting, Santa Ana, Calif., has announced the appointment of four new sales representative organizations. Continental Lighting, New York, will represent LAM Lighting throughout the greater New York metropolitan area. Lighting Associates Inc., Doraville, Ga., is now responsible for LAM products throughout northern Georgia. Perkins-Everitt Lighting & Controls, Memphis, Tenn., now covers the southwestern Tennessee territory. The Schneider Co., Greenville, S.C., will represent the lighting manufacturer in South Carolina.

Barry Kies has announced the formation of a new lighting sales agency for the metropolitan Chicago market called Key Lighting Sales Inc. The new agency will specialize in representing manufacturers of sports lighting systems and will include products for full facility lighting, including interior, area and emergency lighting products.

Nexans Energy USA Inc., Chester, N.Y., has appointed the following manufacturers representatives. All-Pro Sales Inc., Irving, Texas, will cover the northern Texas region. William B. Bleiman & Sons, Philadelphia, is responsible for eastern Pennsylvania; Delaware; southern New Jersey; Maryland; Washington, D.C.; and northern Virginia. Gemco Sales Inc., Pittsburgh, will cover western Pennsylvania and West Virginia.

Mabry Lighting Sales, Columbia, S.C., has been appointed to represent Meyda Tiffany's Lighting Division in North Carolina and South Carolina. Meyda Tiffany is headquartered in Yorkville, N.Y.