G - Physics – 09 – F
Inventor
G - Physics
09
F
Inventor
Country: Canada
Aircraft runway grooved surface
Apparatus for reflex-percussive cutting of concrete etc.
Colour varying reflector
Media for creating illusions of movement
Method and apparatus for cutting grooves in roads
Aircraft runway grooved surface
Apparatus for reflex-percussive cutting of concrete etc.
Colour varying reflector
Traffic marker and housing
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