DK16867C -
Procedure for the production of sound-reproducing plates, tapes and the like, and methods and apparatus for reproducing sound by means of such sound-plates.
- Google Patents
Procedure for the production of sound-reproducing plates, tapes and the like, and methods and apparatus for reproducing sound by means of such sound-plates.
DK16867D
Procedure for the production of sound-reproducing plates, tapes and the like, and methods and apparatus for reproducing sound by means of such sound-plates.
DK16867C
(en)
Procedure for the production of sound-reproducing plates, tapes and the like, and methods and apparatus for reproducing sound by means of such sound-plates.
Procedure for the production of sound-reproducing plates, tapes and the like, and methods and apparatus for reproducing sound by means of such sound-plates.