PRACTICE DEVICE FOR USE BY PERCUSSION MUSICIONS

摘要

1493136 Practice drum C MCDERMOTT and S L BOWERS 21 March 1975 [19 Nov 1974] 50155/74 Heading G5X A device for use in practice by a percussion musician comprises a flat oval metal sheet covered on one side with sheet rubber and on the other with foam rubber, a pair of legs extending from the other side being adapted to clip over the knee of a musician.