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Recently Patented Inventions
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An Improved Gasoline Traction Engine - pp294 - 295
doi:10.1038/scientificamerican05111895-294
The Van Buren Street Drawbridge of the Metropolitan West Side Elevated Railroad of Chicago - pp296 - 298
doi:10.1038/scientificamerican05111895-296
The White-Tailed Gnu in the Hanover Zoological Garden - p299
doi:10.1038/scientificamerican05111895-299
