75709021
May 19, 1999
Nov 12, 2002
Autoclaves; pressure vessels and heaters, namely, combustion chambers used for heating autoclaves; industrial ovens for use in the curing and bonding of composite structures
Environmental Control ApparatusInstallation, maintenance, repair, and services of heating equipment, namely, autoclaves, pressure vessels, ovens, heaters, boilers, and combustion chambers therefor
Building Construction and Repair