|
US3079730A
|
|
Roof deck structure having a continuous vapor barrier and composite insulating element therefor
|
|
US2859479A
|
|
Nylon pelleting process
|
|
US2838134A
|
|
Production of acrylonitrile from hydrocyanic acid and acetylene
|
|
US2834452A
|
|
Automatic gravity take-up for bucket elevators
|
|
US2861984A
|
|
Production of aromatic fluorides
|
|
US2846025A
|
|
Process for removal of divinylacetylene from acrylonitrile
|
|
US2845413A
|
|
Manufacture of modified polyethylene alcohol telomer and oxidized polyethylene alcohol telomer waxes
|
|
US2837404A
|
|
Manufacture of potassium bicarbonate and potassium carbonate
|
|
DE1042326B
|
|
Hydraulically operated gate valve with means for loosening the valve plate or plates from their seats
|
|
GB800060A
|
|
Hydraulically operated gate valve
|
|
GB793153A
|
|
Cyclic heat regenerative conversion of liquid hydrocarbon oils into unsaturated hydrocarbons
|
|
DE1038560B
|
|
Process for the extraction of phenols from waste water
|
|
GB799327A
|
|
Elimination of phenol from aqueous liquors
|
|
US2828325A
|
|
Production of benzonitrile
|
|
US2833807A
|
|
Production of phthalonitriles
|
|
US2810450A
|
|
Method and apparatus for treating coke oven gas
|
|
DE1029821B
|
|
Process for the preparation of oil-soluble sulfonates
|
|
GB789787A
|
|
Production of oil-soluble sulfonates
|
|
US2831870A
|
|
Production of ethylene oxide
|
|
DE1029006B
|
|
Process for the recovery of phenol from sewage
|
