Diagram and specifications. Original application filed May 4, 1887, Serial No. 237,060. Divided and this application filed September 26, 1887. Serial No. 250,721. Patent detailing Emile Berliner's "useful impro More
"Emile Berliner, of Washington, District of Columbia, assignor to the United States Gramophone Company, of same place"--printed above description of patent. Diagram and specification for Emile Berliner's "new a More
Includes 2 pages of diagrams. "Emile Berliner, of Washington, District of Columbia, assignor to the United States Gramophone Company, of same place." Diagrams and specifications for Emile Berliner's "new and us More
Copy 1. "Emile Berliner, of Washington, District of Columbia, Assignor to United States Gramophone Company, of Washington, District of Columbia, a corporation of West Virginia." Diagrams and specifications for More
Copy 1. "Emile Berliner, of Washington, District of Columbia, Assignor to United States Gramophone Company, of Washington, District of Columbia, a corporation of West Virginia." Diagrams and specification of Em More
Copy 1. Application filed June 13, 1900. Serial No. 20,170. Diagrams and specifications detailing Emile Berliner's improvements in gramophones. Describes how any desired volume of sound may be produced from exi More
"Eldridge Johnson of Philadelphia, Pennsylvania, assignor to Victor Talking Machine Company, a corporation of New Jersey." Diagram and specifications detailing Eldridge Johnson's improvements to the Talking - Machine.
Picryl description: Public domain photo of patent - related publication, free to use, no copyright restrictions image. The Wilbur and Orville Wright Papers is a collection of documents related to the Wright br More
Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi More