Solutions Establishing of vacuum has 10 entries with similar clues
- crtVacuum tube display, briefly
- neonElement that gives red glow in a vacuum tub
- overVacuum clearing house throughout
- cleanDo dusting and vacuuming
- hooverVacuum cleaner
- nothingWhat is in a vacuum?
- thermosVacuum flask
- demarcationEstablishing boundaries
- originatingEstablishing
- sir-james-dewarInventor of vacuum flask