发明名称 Artists watercolor paper stretching board
摘要 Watercolor paper is water expanded and placed on the surface of the watercolor paper constrainer for drying and use by the artist. The watercolor paper constrainer consists of a rectangular base defined by constraining straps and tightening screws capable of constraining industry-standard size watercolor paper at the edge-line to obtain a fully flat sheet for full-format painting.
申请公布号 US4862610(A) 申请公布日期 1989.09.05
申请号 US19880144337 申请日期 1988.01.15
申请人 LAWLESS, GLEN D. 发明人 LAWLESS, GLEN D.
分类号 B44D3/18 主分类号 B44D3/18
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