o hold the belt upon the tight pulley, B. tunity to thank their old patrons and subscribers for the very liberal abroad has yearly increased until the number of patents issued at support they have hitherto extended to this journal; placing it, as The slide, C, with its two jaws, e and f, embracing… … PRELIMINARY EXAMINATIONS AT THE PATENT OFFICE. whatever we may deem of interest to our readers. The advice we render gratuitously upon examining an invention belt, is fitted to slip back and forth on the bar, D, car- TO THE MECHANIC AND MACHINIST! does not extend toa search at the Patent Office,…
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