| 摘要 |
A tear resistant drum head assembly (10) comprising a primary layer (11) of contiguous synthetic material (15) and a secondary layer (12) of scored synthetic material (15') secured within a rigid support member (13); wherein, the primary layer (11) is laminated to the secondary layer (12) and the scoring pattern (17) of the secondary layer (12) comprises at least one penetrating cut through the thickness of the secondary layer material (15'); wherein, the secondary layer synthetic material (15') resists tearing in a direction generally perpendicular to an edge of the material.
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