Hand held applicator sponge
作者： Scott W. Osiecki , Steve D. Sieckowski
DOI:
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摘要:
lens.org 参考文章(3)
Edwin F Hardey, Cleaning, dusting and polishing device ,(1952)
Earl E. Hoyt, Scrub sponge or similar article ,(1976)
Harry A Hoy, Combined sponge and sponge holder ,(1923)