-
-
-
Phonograph
-
Patent number 4,124,216
-
Issue date Nov 7, 1978
-
Bang and Olufsen A/S
-
N. Krebs Sorensen
-
G11 - INFORMATION STORAGE
-
-
-
3852816
-
Patent number 3,852,816
-
Issue date Dec 3, 1974
-
G11 - INFORMATION STORAGE
-
2566091
-
Patent number 2,566,091
-
Issue date Aug 28, 1951
-
G11 - INFORMATION STORAGE
-
1525510
-
Patent number 1,525,510
-
Issue date Feb 10, 1925
-
G11 - INFORMATION STORAGE