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Features

The Patent Bill Now Before the Senate

The St. Gothard Railway Tunnel

The First Step in Invention

The New Meteorite

Improvement in Boilers

New Soldering Tool

Mechanical Inventions

Engineering Inventions

Speaking Picture Book

New Mole and Gopher Trap

New Car Door Fastener

Ironing Table, Clothes Drier, and Step Ladder

Apparatus for Continuous Displacement

Drying Oven with Constant Draught of Dry Air

American Industries.--No. 35

Improved Riding Attachment for Cultivators

Non-Conducting Covering for Heated Surfaces

Medusæ

Miscellaneous Inventions

Departments

  • Departments

    Recent Inventions

  • Business and Personal

  • Notes and Queries

  • New Books and Publications

  • Index of Inventions

  • Patents

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March 20, 1880

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