GB539924A
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Improvements in and relating to spark arresters
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US2242354A
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Method of cleaning coal fired boiler installations
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GB513196A
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Improvements in and relating to water tube boilers
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GB493755A
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Improvements in and relating to boilers with underfeed stoker
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GB496673A
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Improvements in and relating to steam boiler installations
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GB472729A
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Improvements relating to dust separators for gases
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GB461600A
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Means for draining moisture from steam turbines
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GB466983A
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Improvements in and relating to installations for removing dust from dust-laden air,flue gases and so forth
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GB364449A
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Improvements in and relating to centrifugal dust separators and collectors
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