Toothbrush having handle joined to brush head by non-pinching flexible twin beam structure
A Standard patent application filed on 30 January 1992 credited to Dirksing, Robert Stanley
Details
Application number :
13528
Application type :
Standard
Application status :
LAPSED
Under opposition :
No
Proceeding type :
Invention title :
Toothbrush having handle joined to brush head by non-pinching flexible twin beam structure