Pressure vessel safety interlock
Pressure vessels having end closures and retainers
Pressurized vessel having closure safety means
Prestressed dome closure flange
Primary manway cover removal
Process for producing a unit from two plastic parts and unit for
Protective cover for evidence
Protective device for child-proofing a VCR
Protective enclosure for vending apparatus and the like
Protective shoe for open top metal containers
Protective storage housing
Pump closure fastening means
Push-on fuel cap
Quick coupling/locking device
Quick opening/closing compression latch
Quick-acting closure with sliding retaining-ring
Quick-disconnect valve closure structure
Quickport closure device
Radiator cover
Ram cartridge