Testimony in the matter of the application of B. Frank. Palmer for the extension of his patent for an artificial leg
Subtitle: read before the Hon. commissioner of patents, October 22, 1860 : extension granted Nov. 3, 1860.
Contributors: Palmer, B. Frank; YA Pamphlet Collection (Library of Congress)
Publisher: C. Sherman & son, printers
Published: 1862
Place of publication: Philadelphia
Language: eng
Number of pages: 16
Subjects: Artificial legs -- Patents.