THREE RECENTLY PATENTED NOVELTIES Fig. 2A BALL-BEARING WORM GEAR. Internal Water-way Improvements About Pittsburg. Fig. 1.--THE THURSTON METAL-BEATER. Favoritism to Workmen. The Current Supplement. January Buildina Edition. Fig. 3AN ODD MECHANICAL TOY. Contents. Worm gear ball bearing 27, scientific american, 1901-01-12
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THREE RECENTLY PATENTED NOVELTIES Fig, 2A BALL-BEARING WORM GEAR, Internal Water-way Improvements, Pittsburg, Fig, 1.-- THURSTON METAL-BEATER, Favoritism, Workmen, Current Supplement, January Buildina Edition, Fig, 3AN ODD MECHANICAL TOY, Contents, Worm gear ball bearing 27, scientific american, 1901-01-12, science, scientific, sciences, mind, health, tech, sustainability, publication, lab, sciam, sa, scientist, research, american, experiment, education, discovery, technology, analysis, magazine, u.s., insights, developments, weekly, broadsheet, inventor, innovation, inventions, patented, industrial revolution, emerging, trends, monthly magazine, united states, engravings, curious works, paper, discover, Scientific Paper, Weekly Journal, Practical Information, Art, Science, Mechanics, Chemistry, Manufactures, research, education, scientist, innovation, 19th century, vintage, america, Rufus M. Porter, 1845, journal, academic, newspaper illustrations, retro style, old-fashioned, media illustrations, victorian style, news, newspaperheadline, 19th century style, illustration, journalism
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