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| | | | |
| | == See also == | | == See also == |
| − | | + | * [[Engineering]] |
| − | *[[Engineering]] | + | * [[Technology]] |
| − | *[[Technology]] | + | * [[British Inventions]] |
| | + | * [[:Category:American Inventions]] |
| | + | * [[:Category:British Inventions]] |
| | | | |
| | ==External links== | | ==External links== |
| Line 146: |
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| | [[Category:Coal mining]] | | [[Category:Coal mining]] |
| | [[Category:Railroads]] | | [[Category:Railroads]] |
| | + | [[Category:England]] |
| | + | [[Category:Technology]] |
| | + | [[Category:Inventions]] |
| | + | [[Category:British History]] |
| | + | [[Category:British Inventions]] |