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GB570501A
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Improvements in filtering apparatus
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US2377252A
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Filtering apparatus
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US2243384A
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Apparatus for mixing and granulating substantially plastic materials
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GB531298A
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Improvements in the manufacture of superphosphate
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GB505047A
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An improved process for the production of phosphatic fertilisers
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GB476150A
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Improvements in and relating to conveying apparatus
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GB463770A
|
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An improved process for evaporating liquids
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GB457320A
|
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Improvements in and relating to filtering apparatus
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US2094350A
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Filtering apparatus
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GB457163A
|
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Improvements in the production of phosphoric acid
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US2106223A
|
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Process for the manufacture of superphosphate
|
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GB437833A
|
|
Improvements in or relating to the manufacture of phosphoric acid-containing fertilisers
|
|
US2015384A
|
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Process for preparing superphosphate
|
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GB418075A
|
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Improvements in processes and apparatus for filtering and washing mixtures of solid and liquid materials
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DE624544C
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Device for filtering mixtures of solid and liquid substances and for washing out the filter cake
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US1776595A
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Manufacture of phosphoric acid
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GB314977A
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|
Improvements in and relating to the manufacture of phosphoric acid and products containing phosphoric acid
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CA342243A
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Filtering and washing device
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CA343714A
|
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Phosphoric acid containing material decomposition
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CA369905A
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Fertilizer manufacture
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