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American Industries.--No. 66

Vaccination and Revaccination

Rights of Patentees while in the Employ of the Government

A Telephonic Controversy Settled

Experiments with Underground Wires

The Petroleum Basins of Wyoming

Improved Clevis

Improved Steam Crane

The Huston Self-Leveling Berth

A Seat for Shop Girls


Improved Air Refrigerating Machine

American Built Steel Steamer for the River Magdalena

By H. L. Bridwell

The Gecko, or Wall Lizard

Communications Received


  • Departments

    Recent Inventions

  • Correspondence

  • Notes and Queries

  • Business and Personal

  • Index of Inventions

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