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Casting a Statue of Heroic Size


Do We Work Too Much?

Changes in the Patent Office

Adjustable Window Bead Fastener

Improved Mine Railway

Double Bolt Sash Lock

Improved Sled

Cold Iron Punch

Rowing Apparatus

Double-Acting Water Wheel

An Electrical Standard for Measuring Light

Dr. Ochorowicz's Loud-Speaking Telephone

Monumental Nests

By C. F. Holder

Pruning Ornamental Trees

Agricultural Inventions - April 25, 1885

Miscellaneous Inventions - April 25, 1885

Engineering 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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