Annual report of the Commissioner of Patents, for the year 1847
Series: 30th Congress, 1st session, House, Ex. Doc -- no.54; Ex. doc. (United States. Congress. House) -- 30th Congress, 1st session, no. 54
Publisher: Printed by Wendell and Van Benthuysen
Published: 1848
Place of publication: Washington
Language: eng
Number of pages: 661
Subjects: Patents; Calotype; Photography; Early works to 1850; Wool industry; Merino sheep
Other titles: Report of the Commissioner of Patents for the year 1847
Notes: "March 3, 1848. Referred to the Committee on Patents."

Errata: p. 661.

"Photographic pictures": p. 33-36.

"Result of observations made during a visit to Germany, in 1844-'45, by Charles L. Fleischmann": p. 239-349.

Includes index.