Imágenes de página
PDF
ePub
[blocks in formation]
[blocks in formation]
[blocks in formation]
[blocks in formation]

Johnson, James, and Johnson, J. Henry. Patentee's manual; treatise on the law and practice of patents for inventions. Ed. 6. 1890. 608J67p Patent centennial celebration, Washington, D. C., 1891.

Proceedings and addresses; celebration of the beginning of the second century of the American patent system at Washington City, D. C., April 8, 9, 10, 1891. 1892. г608P294p

Thompson, W. Phillips.

Handbook of patent law of all countries. Ed. 7. 1886. 608T477h Williams, Archibald.

Romance of modern invention. 1903. 608W721

[blocks in formation]

608B 169

Boys' second book of inventions. 1903.

608B169b

Byrn, Edward W.

Bakewell, Frederick C.

Progress of invention in the nineteenth

[blocks in formation]

609. HISTORY.

Great facts; a popular history and description of the most remarkable inventions during the present century. 609B172

[blocks in formation]
[blocks in formation]
« AnteriorContinuar »