发明名称 VISUAL TRAINING MACHINE
摘要 A visual training machine including a base having a support member secured thereto, the support member having an upright portion with a laterally projecting arm extending horizontally therefrom. A pivot point aperture which is formed in the arm receives a fine line. An object to be identified and observed is connected to one end of the line extending downward from the pivot point and can be raised, lowered, swung back and forth, spiral motion and/or rotated. The other end of the line includes a looped portion thereof which can be connected to any one of various adjustment hooks or which can be held in the operator's hand. Positioned behind the machine can be placed a backdrop of complementing or contrasting configuration relative to the object. In addition a display board having a plurality of different objects, only one of which is identical to the suspended object can be utilized by the observer.
申请公布号 US3648386(A) 申请公布日期 1972.03.14
申请号 USD3648386 申请日期 1969.08.04
申请人 BEVERLY I. STONE 发明人 BEVERLY I. STONE
分类号 A61H5/00;(IPC1-7):G09B1/06 主分类号 A61H5/00
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