|
DE2732134A1
|
|
Sloping sided dam construction - includes two zigzag plastics skins sloping towards each other to form central core between them
|
|
DE2652075A1
|
|
Low grade heat reservoir comprising insulated lake - with floating insulating sheet, esp. for nuclear power station reject heat
|
|
US4045355A
|
|
Clarification plant
|
|
DE2554768A1
|
|
Purificn. basin for waste water is oval in plan - to improve efficiency and facilitate installation and maintenance
|
|
ATA862975A
|
|
Protected earth dam and method for the production thereof
|
|
DE2549270A1
|
|
Purificn. basin for waste water is oval in plan - to improve efficiency and facilitate installation and maintenance
|
|
DE2547717A1
|
|
Earth dam with underground and antinuclear sealing - contg. earth concrete wall and polyamide and/or polyester filter web (BR 24.8.76)
|
|
DE2545406A1
|
|
Purificn. basin for waste water is oval in plan - to improve efficiency and facilitate installation and maintenance
|
|
DE2559476A1
|
|
Sewage treatment plant - with bell shaped concentric aeration and preclarification zones inside funnel shaped final clarification basin
|
|
DE2525909A1
|
|
Sewage treatment plant - with bell and spherical segments dividing basin into aeration and two clarification tanks
|
|
DE2459691A1
|
|
Earth dam of cast type - underground and core seals in form of slit walls joined by knuckle type joints
|
|
DE1817606A1
|
|
Sealing of dormant water reservoirs
|
|
GB1136325A
|
|
Improvements in and relating to anchor heads for the prestressing of concrete
|
|
FR1500316A
|
|
Fixed anchor for a concrete prestressing process with subsequent bonding
|
|
FR1406671A
|
|
Concrete prestressing process with subsequent connection as well as an anchoring head for the implementation of this process
|
|
US3300922A
|
|
Anchor assembly for prestressed concrete structures
|
|
GB961006A
|
|
Improvements in and relating to pre-stressed concrete
|
