The Patent Office the Friend of the Inventor - p272

doi:10.1038/scientificamerican11031888-272

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Launch of a New Type of Ferry Boat - pp272 - 273

doi:10.1038/scientificamerican11031888-272a

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The Mackey Automatic Fire Extinguisher - p274

doi:10.1038/scientificamerican11031888-274

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An Improved Mechanical Movement - p274

doi:10.1038/scientificamerican11031888-274a

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A New Machine for Making Excelsior - p275

doi:10.1038/scientificamerican11031888-275

PDF (320 KB)

An Improved Scaffold Holder - p275

doi:10.1038/scientificamerican11031888-275a

PDF (320 KB)

An Improved Book Holder - p275

doi:10.1038/scientificamerican11031888-275b

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An Improved Car Coupling - pp275 - 276

doi:10.1038/scientificamerican11031888-275c

PDF (446 KB)

The Dynamite Cruiser Vesuvius - p277

doi:10.1038/scientificamerican11031888-277

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The Florida Manatee - pp278 - 280

John R. Coryell

doi:10.1038/scientificamerican11031888-278

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Birmingham Cable Railway - p280

doi:10.1038/scientificamerican11031888-280

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Microscopical Notes - p281

doi:10.1038/scientificamerican11031888-281

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Engineering Inventions - p282

doi:10.1038/scientificamerican11031888-282

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Agricultural Invention - p282

doi:10.1038/scientificamerican11031888-282a

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Miscellaneous Inventions - p282

doi:10.1038/scientificamerican11031888-282b

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To Inventors - p283

doi:10.1038/scientificamerican11031888-283a

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