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Features

Casting a Statue of Heroic Size

Changes in the Patent Office

Herat

Do We Work Too Much?

Improved Sled

Improved Mine Railway

Double Bolt Sash Lock

Adjustable Window Bead Fastener

Rowing Apparatus

Double-Acting Water Wheel

Cold Iron Punch

An Electrical Standard for Measuring Light

Monumental Nests

By C. F. Holder

Dr. Ochorowicz's Loud-Speaking Telephone

Pruning Ornamental Trees

Miscellaneous Inventions - April 25, 1885

Engineering Inventions - April 25, 1885

Agricultural Inventions - April 25, 1885

Departments

  • Departments

    Notes and Queries - April 25, 1885

  • Business and Personal - April 25, 1885

  • Index of Inventions - April 25, 1885

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April 25, 1885

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