Copy specification of Cawood patent
Series: 19th-century legal treatises -- no. 31087; Making of modern law
Publisher: [s.n.]
Published: 1856
Place of publication: [s.l.]
Language: eng
Subjects: Railroads; Equipment and supplies; Patents
Notes: Patent application letter for improvements to the common anvil, or swage block; letters-patent no. 15,687 granted to Cawood, Sept. 9, 1856.

Title from caption.

Signed: Joseph D. Cawood.