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Features

The Sawyer-Man Electric Lamp

The Wastage of Carbon in Electric Lamps

A Trade Mark Decision

Ventilation of Vessels

The Utilization of Petroleum

The Fusing of Carbon

The Largest Cash Vault in the World

Alum in Baking Powders

American Contributions to Modern Artillery

Increasing Trade with Chili

Valvoline

Car Painting

By D. D. Robertson

An Improved Roofing

A New Lamp Extinguisher

New Time-Indicating Night Lamp

New Trunnion and Trimmer

The Common Jacana

Paris Exhibition--Facade of Austria and Hungary

Astronomical Notes

By Berlin H. Wright

American Institute Fair

To Inventors

Communications Received

Departments

  • Departments

    New Books and Publications

  • Business and Personal

  • Notes and Queries

  • Patents

  • Index of Inventions

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