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Collisions at Sea

The Holyoke Turbine Tests

The American Public Health Association

Edison's Electric Generator

The Use of Steel for Bridges

How Far Can We Hear with the Telephone?

A New Velocipede

New Foundation Plate for Elevated Railways

Miscellaneous Inventions

A New Sweeper

New Automatic Fire Lighter

American Industries--No. 24

Some Recent Inventions

New Musical Instrument

New Window Cleaning Chair

House-Builder Moth


Mechanical Inventions

Recent Decisions Relating to Patents, Trade Marks, Etc.


  • Departments


  • Business and Personal

  • Index of Inventions

  • New Books and Publications

  • Notes and Queries

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November 29, 1879

20% Sitewide for President's Day