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A system for transmitting messages from a distance along a wire, especially one creating signals by making and breaking an electrical connection.
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It was used for fixing clothes at a factory use, and on production lines.
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A variation of the regular pin which includes a simple spring mechanism and a clasp.
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A wide-mouthed glass jar with an airtight screw top, used for preserving fruit and vegetables.
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A high explosive consisting of nitroglycerine mixed with an absorbent material and typically molded into sticks.
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A transportation system, typically one traveling up and down a mountain, in which cabins are suspended on a continuous moving cable driven by a motor at one end of the route.
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A gas engine is an internal combustion engine which runs on a gas fuel, such as coal gas, producer gas, biogas, landfill gas or natural gas.
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A machine for washing dishes by machine rather than hand
