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Genesis of the First Successful Aeroplane

The Seventh Annual Show of the Automobile Club of America

The Patent Office in 1906

The Current Supplement

Righting a Capsized Lighthouse Caisson

By Stuart Stevens Scott

Automatic Apparatus for Selling Postage Stamps, Post Cards, and Newspapers

By Robert Grimshaw

Total Eclipse of the Sun in January, 1907

By Mary Proctor

The Second Annual Exhibition of the Aero Club of America

The Motive Power of a 25 Knots Liner

The Poulsen Selective System of Wireless Telegraphy

By A. Frederick Collins

A Disease Which Threatens the American Chestnut Tree

By G. G. Copp

A Collapsible Ash-Pan

Gage for Marking Window Casements

An Improved Hand Camera

Patent Department

Business and Personal Wants

READ THIS COLUMN CAREFULLY--You will find inquiries for certain classes of articles numbered in consecutive order. If you manufacture these goods write us once and we will send you the name address of the party desiring the information...


  • Departments


  • Recently Patented Inventions

  • Notes and Queries

  • Index of Inventions

  • Patents

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