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Friedmann's Ejector

Incendiary Silk

The National Academy

Oriental Sand and Mud Baths

Roadmasters' Difficulties

The “Conch Pearl”

Blast Engine

A New Device for Preventing Journals from Heating

Mechanical Inventions

Novel Steam Generator

Agricultural Inventions

How to Work the New Copying Process

Improved Cabinet Seat

Miscellaneous Inventions

The Care of Tools

An Improved Spindle

New Barrel Lifter

The Otter

Natural History Notes

Engineering Inventions


  • Departments


  • Business and Personal

  • New Books and Publications

  • Notes and Queries

  • Index of Inventions

  • Patents

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