Per forating machines equipped with typewriter keyboards are used for the preparation of the messages, two or three keyboard perforators being employed at each end of the telegraph lines on which the Murray system is used. [Please select]
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I see some perforators who have finished operating in a quarter of an hour. [Please select]
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When the perforators are gone, I proceed with my examination of the nests, covered with my hieroglyphics, the pencilled notes. [Please select]
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Who could say, when the perforators are numerous, to what lengths this accumulation can go. [Please select]
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At the mouth of a ground-hog burrow were two bone perforators, potsherds, fragments of bones, and pieces of worked flint, including two knives, which had been thrown out by the animal. [Please select]
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They were imbedded in mixed ashes and earth and accompanied with several pestles, bone perforators, three flint knives, a small celt, and part of a clay pipe stem. [Please select]
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