Title:
Color changing antiseptic composition
United States Patent 2451022
US Patent References:
/0871612.html
- - 0871612

Poison-tablet
- - 1335488

Fire extinguisher
- - 1623510

Enteric coated capsule
- - 1690760

Water softener
- - 1761411


Inventors:
Dohrmann, Frederick C.
Publication Date:
10/12/1948
View Patent Images:
Assignee:
Dohrmann, Frederick C.
Primary Class:
Other Classes:
424/408
US Patent References:
2063575Dispersing of phenolphthalein in mineral lubricating oils
Foreign References:
GB190511601A