-
745.
Ordnance
Subjects
Military redainess
-
746.
Ore-dressing
Subjects
-
747.
Ore-dressing plants
Subjects
-
748.
Orientation
Subjects
-
749.
Oscillations
Subjects
CyclesFluctuations (Physics)Vibration
-
750.
Oscillographs
Subjects
Electronic apparatus and appliancesCathode rays
-
751.
Oscilloscopes
Subjects
Electronic apparatus and appliances
-
752.
Outdoor furniture
Subjects
Municipal artUrban design
-
753.
Overhead electric lines
Subjects
Electric lines
-
754.
Padlock (Bicycle)
Genre/Form
Equipment
-
755.
Paintbrushes
Subjects
-
756.
Palomares hydrogen bombs incident, Andalusia, 1966
Subjects
Nuclear accidents
-
757.
Paper mills
Subjects
Mills
-
758.
Paper recycling
Subjects
PaperWaste products
-
759.
Parking garages
Subjects
Garages
-
760.
Particle accelerators
Subjects
AtomsElectronicsNuclear physicsParticle physics
-
761.
Passenger ships
Subjects
Merchant ships
-
762.
Pavements
Subjects
-
763.
Peer-to-peer architecture (Computer networks)
Subjects
Computer network architectures
-
764.
Permanent magnets
Subjects
Magnets
-
765.
Personal transporters
Subjects
Vehicles
-
766.
Petroleum chemicals industry
Subjects
Petroleum industry and trade
-
767.
Petroleum engineering
Subjects
Mining engineering
-
768.
Petroleum industry and trade
Subjects
Energy industries
Last updated dated: 05/07/2025