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Keywords:
PNEUMATIC,
PROPULSION,
TUBES,
TELEGRAPHY,
WATER,
COMPRESSED,
AIR,
VALVES,
TRANSMISSION,
PIPES,
MOTION,
VELOCITY,
PRESSURE,
VACUUM,
APPARATUS,
CIRCUITS,
THEORY,
COMMUNICATIONS,
TELECOMMUNICATIONS,
ENGINES,
SPEED,
CARRIERS,
TELEGRAPHS,
EXPANSION
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© Thomas Telford and ICE
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