|
GB650139A
|
|
Improvements in or relating to gas burners
|
|
GB639974A
|
|
Improvements in or relating to combined gas and solid fuel fires
|
|
GB651154A
|
|
Improvements in or relating to the purification of naphthalene
|
|
GB637066A
|
|
Improvements in and relating to ovens
|
|
GB639720A
|
|
Improvements in or relating to water heating systems
|
|
GB638608A
|
|
Improvements relating to apparatus for collecting predetermined quantities of gas
|
|
GB639899A
|
|
Improvements in and relating to water heating apparatus
|
|
GB643388A
|
|
Improvements in or relating to the production of polymeric materials
|
|
GB630538A
|
|
Improved combined gas-heated griller and boiler plate
|
|
GB644707A
|
|
Improvements in or relating to the production of terephthalic acid
|
|
GB636560A
|
|
Improvements in or relating to the preparation of iron oxide reagent
|
|
GB643159A
|
|
Improvements in or relating to the preparation of a nodulated support for a catalyst
|
|
GB631693A
|
|
Improvements in or relating to gas fires
|
|
GB632819A
|
|
Improvements in or relating to gas-fired radiant heaters
|
|
GB635778A
|
|
Improved panel for heaters
|
|
GB637108A
|
|
Improvements in or relating to the production of combustible gases from hydrocarbon oils
|
|
GB622324A
|
|
Improvements in or relating to the catalytic oxidation of hydrogen sulphide in gaseous mixtures
|
|
GB626987A
|
|
Improvements in or relating to solid fuel fired heating appliances and to back boilers for use therewith
|
|
GB620928A
|
|
Improvements in or relating to the purification of towns gas
|
|
GB619585A
|
|
Improvements in or relating to heat exchangers
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