Filed: April 17, 1990 pneumatic control units for cranes, excavators, loaders or dozers, and rotary joints for hydraulic and pneumatic systems Owned by:GRAU GmbH Serial Number:74050046
Filed: June 16, 1995 air supply and control equipment for regulating air pressure within commercial vehicles, namely, trucks, tractors and buses… Owned by:GRAU GmbH Serial Number:74689428