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Features

Progress of Patent Law

The Surplus Patent Funds

Diagonal Avenues in Cities

The Technological, Industrial, and Sanitary Museum of New South Wales

Subaqueous Gold Mining

Another “Mysterious” Boiler Explosion

By Joshua Rose

American Industries--No. 65

Continuous-Slide Lantern

Miscellaneous Inventions

Improved Air Brake

Locomotive Steam Crane

Helmet Crests

The Navies of Europe--Ten Years' Progress in Ships of War

Agricultural Inventions

Departments

  • Departments

    New Inventions

  • Recent Inventions

  • Business and Personal

  • Notes and Queries

  • Index of Inventions

  • New Books and Publications

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February 12, 1881

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