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GB550926A
|
|
Improvements in or relating to means for the purification of impure liquid or semi-liquid matter
|
|
GB543865A
|
|
Improvements in or relating to a plant for the treatment of water supplies for domestic use, sewage and the like, and the manufacture of fertilisers
|
|
GB542008A
|
|
Improvements in or relating to a process and plant for the treatment of sewage and the like
|
|
GB533298A
|
|
Improvements in or relating to a plant for the treatment (e.g. drying) or fermenting of granular or loose materials
|
|
GB521895A
|
|
Improvements in or relating to a plant and process for the heat treatment or fermentation of granular or loose materials
|
|
GB521894A
|
|
Improvements in or relating to a process for the manufacture of fertilizers
|
|
GB521939A
|
|
Improvements in or relating to plant and mechanism for the manufacture of fertilizers
|
|
GB514662A
|
|
Improvements in or relating to apparatus for scraping the floors of sewage tanks
|
|
GB514627A
|
|
An improved process and plant for the treatment of sewage and other waste materials
|
|
GB496547A
|
|
Improvements in or relating to plant and machinery for the manufacture of fertilizers
|
|
GB496637A
|
|
Improvements in or relating to mechanical labourers
|
|
GB438132A
|
|
Improvements in or relating to raising liquids by gas pressure
|
|
GB415775A
|
|
Method of and means for treating and purifying sewage
|
|
GB412174A
|
|
Improvements in or connected with systems for the transportation of goods by water in barges or containers
|
|
GB333974A
|
|
Improvements in and connected with the separation or settlement from sewage and other liquids, of matters held in suspension therein
|
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GB239271A
|
|
Improvements in appliances for supplying gas to liquid
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