Article for correcting master sheets
作者： Ellen M Yunker , Charles L Yunker
DOI:
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摘要:
lens.org 参考文章(6)
Nadell Aaron, Method and means of eradicating typewritten matter ,(1927)
Richard V Bowman, Erasure attachment for typewriters ,(1949)
Warren E Jones, Eraser, erasing material, and a method of forming the same ,(1937)
William J. Champion, Hectograph blanket having a copy mass comprising a silicate ,(1945)
Emerson Charles Mcfadden, Eraser for type-writers. ,(1907)
Randolph Norman, COMPOSITION FOR RENDERING CARDBOARD, &C., IMPERVIOUS TO GREASE. ,(1900)