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How to Judge of Leather in Belts

The Registration of Trade Marks

The Scientific American as an Educator of the Young


The Year' Product of Gold and Silver

Inventions Wanted to Utilize Sawdust

Steam Pilotage

The New Atlantic Cable

New Candlestick

New Horse Detacher

Miscellaneous Inventions

Improvement in Chain Pumps

The St. Louis Bridge

American Industries.--No. 25

Mechanical Inventions

Improved Oil Cabinet

Novel Traction Engine

A Singular Habit of the Woodcock

Natural History Notes

Recent Decisions Relating to Patents, Trade Marks, Etc

Measuring Resistances

Ancient Glassware

Platt's Tracing Apparatus

Communications Received


  • Departments


  • New Books and Publications

  • Notes and Queries

  • Business and Personal

  • Index of Inventions

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