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Raking Attachment for Harvesters, Improved Car Truck, and more

The British Postal System

Editorial Summary

Incineration or Burial

The Steam Indicator--Its Value and Use

Seeman & Catrow's Folding Clothes Horse

Science Familiarly Illustrated

Gleanings From the Polytechnic Association

Recent American and Foreign Patents

Answers to Correspondents

Reynolds' Improved Bran Duster

Swann's Safety Valve

The Care and Use of Files

City Pavements

Centrifugal Force


The Patent Bill Passed

The Day Line

Patent Claims

Badger's Improved Nutmeg Grater


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April 13, 1867

20% Sitewide for President's Day