Filter to slow down flow and with multiple action to filter tobacco smoke or smoke from other polluting sources
A Standard patent application filed on 13 April 2000 credited to Murri, Romano
Details
Application number :
43126
Application type :
Standard
Application status :
LAPSED
Under opposition :
No
Proceeding type :
Invention title :
Filter to slow down flow and with multiple action to filter tobacco smoke or smoke from other polluting sources