ery light in draft and can The patent for this invention was procured through only in the shop and warehouse, but in every place where the indus- be easily managed by any one. It is not only adapted the Scientific American Patent Agency, on April 8 tries of life are pursued. 1863, by A. Y.… … year, at$l £0 each, or $3 per annum, with correspondingly low terms M'DONALD'S SCREW WRENCH. to Clubs ; $1 will pay for four months' subscription. The numbers for one year, when bound in a volume, constitute a work of 833 pages of ther information address the patentee, or John Morri- ployed to…
Patents · Combination · Claim · Purpose · Constructed · Munn · Scientific American · Manner · American patent · Twelve months · Purpose set · Address munn · York city · Patent office · Henry carey · Scientific books · Top edge
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