Varied concepts for brushes and air handling remove dirt more effectively. Vacuum-cleaning techniques may be used in combination. Many of these concepts, while not appropriate for household cleaning, may find use in industry, research, and medicine.
Space-age vacuum cleaning
NASA Tech Briefs ; 2 , 4
1978-03-01
Miscellaneous
No indication
English
Collectors for vacuum-cleaning lines
NTRS | 1977
|Vacuum cleaning of railroad cars
Engineering Index Backfile | 1930