发明名称 SHIELD MEANS FOR DATA INPUT APPARATUS AND METHOD OF USE THEREOF
摘要 Shield means are provided for use on data input apparatus. The shield means includes a housing or frame with at least one channel defined therethrough. The at least one channel has a first end and a second end and is arranged such that a user can view the first channel end in a first position when the user is looking through the second channel end and the user's line of vision is substantially parallel with the longitudinal axis of said channel, thereby allowing data and/or data input means associated with or below the first channel end to be viewed by the user in the first position. The view of the first channel end is substantially obscured or shielded from the user in at least a second position when the user's line of vision is at an acute angle to said channel longitudinal axis.
申请公布号 US2010091397(A1) 申请公布日期 2010.04.15
申请号 US20080527310 申请日期 2008.03.07
申请人 CLANCY PAUL;BIRTWISTLE GORDON 发明人 CLANCY PAUL;BIRTWISTLE GORDON
分类号 G02B27/02;G06F1/16;G06F21/83 主分类号 G02B27/02
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