RECENTLY PATENTED INVENTIONS. Engineering. Railway Appliances. Mechanical. Electrical. Agricultural. Miscellaneous. hoof to which file applied and be self-locking while it BUILDING EDITION. 361 Broadway New York., scientific american, 1893-12-23


RECENTLY PATENTED INVENTIONS. Engineering. Railway Appliances. Mechanical. Electrical. Agricultural. Miscellaneous. hoof to which file applied and be self-locking while it BUILDING EDITION. 361 Broadway New York., scientific american, 1893-12-23


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