Drum instrument, hydraulic system for such a drum instrument, and method for manufacturing such a drum instrument
A Standard patent application filed on 13 March 1996 credited to De Jong, Leendert Willem Cornelis
;
Masseling, Willem Herman
Details
Application number :
48509
Application type :
Standard
Application status :
LAPSED
Under opposition :
No
Proceeding type :
Invention title :
Drum instrument, hydraulic system for such a drum instrument, and method for manufacturing such a drum instrument
Inventor :
De Jong, Leendert Willem Cornelis
;
Masseling, Willem Herman