发明名称 Slide calculator
摘要 A sheet of two contiguous detachable leaf members is folded and separated to form slide and sleeve components of the calculator. Fold lines in the sheet are formed parallel to a separation or tear line that divides on leaf member from the other leaf member. In assembling the slide calculator the leaf members can be separated before or after the folding operation. In various embodiments of the invention an information readout is provided on reverse sides of the calculator including one embodiment wherein the printed format of the slide and sleeve components is applied to one surface only of the respective leaf members. The slide component can be formed of two or more generally rectangular elongated slide segments folded into overlapping disposition, with data applied to each side of the slide segments.
申请公布号 US4233768(A) 申请公布日期 1980.11.18
申请号 US19780944273 申请日期 1978.09.21
申请人 BROMBERG, HOWARD M. 发明人 BROMBERG, HOWARD M.
分类号 G06G1/06;(IPC1-7):G09F11/00 主分类号 G06G1/06
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