发明名称 Lawn rake head of molded synthetic resin composition
摘要 An integrally molded plastic lawn rake head features a frame section composed of a first, comparatively inexpensive, synthetic resin having a relatively low modulus of elasticity and a tine section composed of a second, comparatively tougher, more elastic and wear-resistant synthetic resin; the tine section having a root portion integrally molded in and securely interlocked in intimate contact with the frame section to preclude separation of the tine section from the frame section of the lawn rake head.
申请公布号 US4831815(A) 申请公布日期 1989.05.23
申请号 US19870132930 申请日期 1987.12.15
申请人 THE UNION FORK & HOE COMPANY 发明人 BONNES, DAVID R.
分类号 A01D7/06 主分类号 A01D7/06
代理机构 代理人
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