WHEREAS, I, THOMAS A. EDISON, of Llewellyn Park, in the County of Essex and State of New Jersey, did obtain letters Letters Patent of the United States, upon certain inventions, which are numbered and dated as follows, to wit:-
No. 430,275, dated June 17th 1890, Improvement in Magnetic Separators;
" 430,280 " June 17th 1890
" 465,250, " December 15th 1891, Improvement in the Process of Extracting Copper Pyrites;
" 465, 251 " December 15th 1891, Improvement in the Method of Bricking Fine Ores;
" 470,929 " March 15th 1892, Improvement in Magnetic Seperators;
" 471,268, " March 22nd 1892, Improvement in Ore-Conveyors and Method or Arranging Ore Thereon
" 472,286, " April 5th 1892, Improvement in Dust Proof Journal Bearings for Shafts
" 472,752, " April 12th 1892, Improvement in Dust Proof Bearings;
" 472,753, " April 12, 1892, Improvement in Ore Screening Apparatus;
" 474,591, " May 10th 1892, Improvement in the Process of Extracting Gold from Sulphide Ores;
" 474,592, " May 16th 1892, Improvement in Ore Conveying Apparatus;
" 474,593, " May 10th 1892, Improvement in Dust Proof Swivel Shaft Bearings;
No. 475,532 dated June 7th 1892, Improvement Ore Screening Apparatus;
" 476,991, " June 14th 1892, Improvement in the Method of and Apparatus for Separating Ores;
" 485,840 " November 8th 1892, Improvement in the Method of Bricking Fine Iron Ores;
" 485,841, " November 8th 1892, Improvement in the Method of Magnetically Separating Ores;
" 485,842, " November 8th 1892, Improvement in the Method of Magnetic Ore Separation
AND WHEREAS, I am now the sole and exclusive owner of the entire right, title and interest in and to each of the aforesaid Letters Patent and the inventions covered thereby; and
WHEREAS, I am also the owner by assignment of the entire, title and interest in and to Letters Patent of the United States No. 434,588 issued August 19th 1890, jointly to myself and William K.L. Dickson, upon an Improvement in Magnetic Ore Separators; and
WHERAS, EDISON ORE MILLING COMPANY, LIMITED, a corporation organized and existing under the Laws of the State of New York, and having its principal place of business at New York City in said State, is desirous of acquiring the entire Proof Swivel Shaft Bearings;
No. 475,532 dated June 7th 1892, Improvement Ore Screening Apparatus;
" 476,991, " June 14th 1892, Improvement in the Method of and Apparatus for Separating Ores;
" 485,840 " November 8th 1892, Improvement in the Method of Bricking Fine Iron Ores;
" 485,841, " November 8th 1892, Improvement in the Method of Magnetically Separating Ores;
" 485,842, " November 8th 1892, Improvement in the Method of Magnetic Ore Separation
AND WHEREAS, I am now the sole and exclusive owner of the entire right, title and interest in and to each of the aforesaid Letters Patent and the inventions covered thereby; and
WHEREAS, I am also the owner by assignment of the entire, title and interest in and to Letters Patent of the United States No. 434,588 issued August 19th 1890, jointly to myself and William K.L. Dickson, upon an Improvement in Magnetic Ore Separators; and
WHERAS, EDISON ORE MILLING COMPANY, LIMITED, a corporation organized and existing under the Laws of the State of New York, and having its principal place of business at New York City in said State, is desirous of acquiring the entire

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