Method for convertion of organic wastes using contiliuous operated closed system
HU9503100D0
Pipe-unit for building and/or renovation of sewers especially crawlable or accessible ones and method for building and/or renovation of underground linear engineering structure with closed profile especially sewer
HU9301649D0
Method and floating arrangement for measuring quantitative and qualitative characteristic of liquid medium in motion especially in closed profile channels
HUT60798A
Shaft unit for building the shafts of ducts serving for transferring fluid media particularly channels
HU904135D0
Automatic flap valve named "zapor"
HU902264D0
Toilet for dogs
HU901316D0
Public sanitary building
HU901317D0
Universally maintained rolling wc-bloc
HU896420D0
New method for tunnel building
HU913616D0
Gully-hole for drains
HUT57321A
Inlet fitting for water sink-holes
HUT49080A
Apparatus for furthering matters particularly lifting-out slurry from interchannel through cleaning pit
HUT46132A
Connection arrangement for utilizing the heat content of crude sewage
HU199756B
Apparatus for introducing gas into liquides and feed element for gas, first of all for the former apparatus
HU194344B
Method for the maintenance of channels with passable or creepable segment
HUT36529A
Method and apparatus for increasing the capacity of lifting over plants
HUT35750A
Sludge loosening and furthering tool for cleaning sewage conduit
HUT35501A
Device for feeding toilet-paper and/or paper towel
