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Casting a Statue of Heroic Size

Changes in the Patent Office


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

    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