Resolving Aqueous-petroleum Or Aqueous-hydrocarbon Systems (252/328) Patents (Class 516/FOR133)
Foreign Patent Art Collections
- Organic sulphoxy compound containing (252/332) (Class 516/FOR137)
- Protein or carboxylic compound containing (252/340) (Class 516/FOR145)
- Organic amine, amide, or N-base containing (252/344) (Class 516/FOR149)
- With elements other than C, H, and O (252/345) (Class 516/FOR150)
There are no patents to show for this class.