发明名称 Kaleidoscopes having removable and replaceable designs
摘要 Various kaleidoscopic devices are provided which utilize removable and replaceable design inserts. The design inserts may be formed from a wide variety of artistic materials and may either be manufactured or prepared by the individual user. The use of these removable and replaceable design inserts greatly increases the viewing flexibility for the user by allowing a large number of designs to be viewed using a single kaleidoscope.
申请公布号 US4815801(A) 申请公布日期 1989.03.28
申请号 US19870108107 申请日期 1987.10.13
申请人 ANDERSON, KENNETH J. 发明人 ANDERSON, KENNETH J.
分类号 G02B27/08;(IPC1-7):G02B23/00 主分类号 G02B27/08
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