Dual layer insect screen assembly
Dual layer shingle
Dual mechanical and resin anchor bolt
Dual mode debris pickup machine
Dual mode stabilizer for loaders and attachments
Dual motion, quick release latch mechanism
Dual packer for a horizontal well
Dual paver
Dual piston single phase sampling mechanism and procedure
Dual pivot hinge assembly
Dual pressure viewport assembly incorporating trapped gas...
Dual pump gravity separation system
Dual purpose blow out preventer
Dual purpose form tie lock tool
Dual purpose locking device for air vented bicycle safety...
Dual purpose vehicle
Dual range sound absorber
Dual redundant detonating system for oil well perforators
Dual retrievable standing valve cage
Dual roll blind system