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GB634346A
|
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Improvements in or relating to arc welding in inert atmospheres
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GB635958A
|
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Improvements in or relating to rotary cocks
|
|
GB660573A
|
|
Improvements in or relating to the extraction of sugar and other soluble materials from dates
|
|
GB628428A
|
|
Improvements in or relating to the construction of metal containers
|
|
GB635306A
|
|
Improvements in or relating to expansion joints
|
|
GB624865A
|
|
Improvements in or relating to heat exchangers and filter-presses
|
|
GB608972A
|
|
Improvements in or relating to attemperators or like devices
|
|
US2525000A
|
|
Filter for plate-type heat exchange apparatus
|
|
GB608038A
|
|
Improvements in or relating to distillation processes
|
|
GB582155A
|
|
Improvements in or relating to liquid measuring or metering devices
|
|
GB589677A
|
|
Improvements in or relating to plate type heat exchangers, filter presses and like apparatus
|
|
GB617502A
|
|
Improvements in or relating to the treatment of yeast and fermentation of beer
|
|
GB582910A
|
|
Improvements in or relating to filters
|
|
GB576604A
|
|
Improvements in or relating to steam condensing apparatus
|
|
US2450381A
|
|
Treatment by azeotropic distillation of complex mixtures
|
|
GB575346A
|
|
Improvements in or relating to centrifugal pumps
|
|
GB576598A
|
|
Improvements in or relating to the de-aeration of liquids
|
|
GB572897A
|
|
Improvements in or relating to the treatment by distillation of complex mixtures
|
|
GB559467A
|
|
Improvements in or relating to apparatus for use in the agitation or like treatments of liquids
|
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GB554270A
|
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Improvements in or relating to valves
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