G - Physics – 11 – B
Patent
G - Physics
11
B
352/20, 181/53
G11B 25/04 (2006.01) G11B 17/32 (2006.01) G11B 19/20 (2006.01)
Patent
CA 988861
Ewert Manfred
Roggenbuck Klaus
LandOfFree
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