The Adjustable Clamp Company, which manufactures Jorgensen Clamps, has the experience and talent to provide an excellent clamp. When the company started in 1903 by A.V. Holman, their primary focus was on the models 0 through 4 wooden screw clamps. When A.V. Holman secured his patents in the 20s and 30s, the focus branched out into C-clamps, steel bar clamps, and fixtures. When D.V. Holman took over in the 50s and 60s, the product line was altered to include more items and the spring and corner clamps came into the market. Today, the Adjustable Clamp Company manufacturers a wide variety of Jorgensen, Adjustable, and Pony brand products; including the Pony pipe clamps, "Cabinet Claw" cabinet clamp, bar clamps, and many other items.