

1 luurr 4<i. — Cooking stove invemed by John Hai-rimaii and pau-nii_-d M 



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Figure 50. — Improved ice skate invented by A. Barclay and C. \V. Bontgcn. Patent 6330, April 17, 1849. 

 PAPER 48: UNITED STATES PATENTS NEW USES FOR OLD IDEAS 147 



