|
BG49776A1
|
|
Mechanic port for hydrostructures
|
|
BG49245A1
|
|
Strenghtmeasuring element, especially for band and wagon balance
|
|
BG47981A1
|
|
Canal- lock for extraction of heavy minerals
|
|
BG47597A1
|
|
Device for filling up of worked spaces
|
|
BG48153A1
|
|
Method for preparing of ferrioxide pigment
|
|
BG48132A1
|
|
Lifting device for heavy- charged trucks
|
|
BG47434A1
|
|
Method for underground working of ore lodes with inclined layers
|
|
BG47139A1
|
|
Protective valve
|
|
BG47890A1
|
|
Regulator for water- closed reservoir
|
|
BG50083A1
|
|
Method for preparing of liquid- crystalline polymer lamillats
|
|
BG48603A1
|
|
Pushing cotter device
|
|
BG46814A1
|
|
Cutting mechanism stone- cutting machines
|
|
US4243520A
|
|
Method for separation of large sized salt containing minerals
|
|
DE2753000A1
|
|
Mechanical crushing of coarse material, esp. slag contg. aluminium - for recovery of aluminium, alumina, and iron in aluminium smelting works
|
|
GB1596515A
|
|
Separating solid materials
|
