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Charles Arthur Fitzher Gregson
George Rayner
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Photometry And Measurement Of Optical Pulse Characteristics
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Abstract
19,165. Gregson, C. A. F., and Rayner, G. Aug. 28. Erasers; pencil holders and point-protectors.-A rubber &c. eraser is formed for use also as a pencil holder and point-protector. The eraser a is preferably pointed, as shown, and is formed with a blind hole or socket a<3>, in which a metal or other resilient tube or lining c is fitted and tightly fixed by elastic thread or wire &c. binding d. The tube c may project beyond the eraser, and may be provided on its surface with measurement marks of English, metric, or other systems.
GB190619165D1906-08-281906-08-28A Combined India Rubber or Ink Eraser, Pencil Holder and Point Protector.
ExpiredGB190619165A
(en)