-
529.
Laminated materials
Subjects
Composite materials
-
530.
Lamps
Subjects
LightingHouse furnishings
-
531.
Lanterns
Subjects
Lamps
-
532.
Laptop battery chargers
Genre/Form
Equipment
-
533.
Laptop computers
Genre/Form
Equipment
-
534.
Laptop stands
Genre/Form
Equipment
-
535.
Large Hadron Collider (France and Switzerland)
Subjects
Particle accelerators
-
536.
Large scale integration of circuits
Subjects
Integrated circuits
-
537.
Lathes
Subjects
-
538.
Launches
Subjects
Boats and boatingShips
-
539.
Lead mines and mining
Subjects
Mines and mineral resources
-
540.
Leather bindings
Subjects
Bookbinding
-
541.
Length measurement
Subjects
Mensuration
-
542.
Levers
Subjects
-
543.
Library Web sites
Subjects
Web sites
-
544.
Lifesaving
Subjects
DisastersFirst aid in illness and injuryCivil defense
-
545.
Light emitting diodes
Subjects
Semiconductor diodes
-
546.
Lighthouses
Subjects
Hydraulic structuresAids to navigation
-
547.
Lighting
Subjects
Environmental engineering (Buildings)
-
548.
Lighting
Subjects
Light
-
549.
Lighting (Cinematography)
Subjects
Cinematography
-
550.
Lightning conductors
Subjects
Fire prevention
-
551.
Lime industry
Subjects
-
552.
Limekilns
Subjects
Furnaces
Last updated dated: 17/11/2024