|
DE804611C
|
|
Lensmeter
|
|
GB493898A
|
|
Process for preparing road surfacing products
|
|
GB437870A
|
|
Improved process for making a briquetted fuel and product obtained by this process
|
|
GB430061A
|
|
Improvements in or relating to substances for the surfacing of roads
|
|
DE674813C
|
|
Binder for road construction
|
|
GB420411A
|
|
Apparatus for the spray evaporation or cooling of liquids and semi-liquids
|
|
US2113794A
|
|
Road surfacing product
|
|
GB431781A
|
|
A process and product for use in the surfacing of roads
|
|
GB431474A
|
|
A process and product for use in the surfacing of roads
|
|
DE626772C
|
|
Road building material
|
|
GB388853A
|
|
Improvements in a process and apparatus for the production of solid artificial fuel
|
|
GB374923A
|
|
Improvements in or relating to a method of and means for effecting the distillation of solid fuels
|
|
DE579958C
|
|
Device for producing a homogeneous, if possible lump-free mixture of tar, bitumen or the like with dust-like fillers
|
|
DE573998C
|
|
Furnace for smoldering fuels
|
|
GB339247A
|
|
Improved products for double impregnation of wood
|
|
DE537398C
|
|
Process for preserving wood
|
|
GB310804A
|
|
Wood impregnating product
|
|
GB310805A
|
|
Method for impregnating wood
|
|
DE552645C
|
|
Musical instrument with sound generation by photoelectric way
|
|
GB307250A
|
|
Retort setting for heating fuel with gases or superheated steam
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