- The Arlington Chemical Company, Yonkers, N.Y., U.S.A.1
- The Embalmers Supply Company, Westport, Connecticut1
- The Geer Drug Co. Wholesale Druggists, Charleston, Spartanburg, &Greenville, SC1
- The J.F. Hartz Company, Detroit, Michigan1
- The National Drug Company,1
- The Torsion Balance Co.1
- Thomae Co.1
- Tomac1
- Tycos-Taylor Instruments1
- U.S. Catheter & Instrument Corporation1
- Unknown1
- V. Mueller & Co., Chicago, IL1
- Vapo-Cresolene Company1
- Verba Laryngoscope Company, Colorado Springs, Colorado1
- W. & H. Hutchinson, Sheffield1
- W. A. Baum Company, Inc. New York1
- W. Lorenz1
- Waterman, Christina L.1
- Weber, John1
- Wedgewood1