发明名称 Photographic easel system
摘要 In the disclosed easel system, a base supports a number of interchangeable facilities for engaging photographic material such as enlarging paper. These facilities may provide variable borders, fixed borders, hold the material for unbordered pictures, and secure the material for contact prints. Hinges hold the various facilities in a preparatory position when the material is being changed.
申请公布号 US4150895(A) 申请公布日期 1979.04.24
申请号 US19770815372 申请日期 1977.07.13
申请人 SAUNDERS PHOTO GRAPHIC INC 发明人 HESS, STEVEN;NORTHRUP, DANIEL
分类号 G03B27/58;(IPC1-7):G03B27/58 主分类号 G03B27/58
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