C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
181/68
C08L 65/00 (2006.01) G11B 3/62 (1980.01)
Patent
CA 1163569
ABSTRACT OF THE DISCLOSURE A rubber sheet for turntable is featured by a cured rubber molding having a hardness between 30° as measured with an A-type rubber hardness tester and 15° as measured with an F-type rubber hardness tester and an impact resilience of not less than 40 %. This rubber sheet effectively prevents the tone quality of reproduced sounds from deteriorating due to howling or external vibrations and permits reproducing source sounds faithfully.
377415
Hohyu Rubber Co. Ltd.
Osler Hoskin & Harcourt Llp
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