Title: 1889 Court decision: Edison ‘declared the Inventor of Incandescent Electric Lighting’ Author: Place: Publisher: Date: 1889 Description: The Westinghouse - Edison Case / Sawyer and Man vs. Edison / Full text of Justice Bradley's Opinion...Pittsburgh, October 5, 1889 / Mr. Edison Declared to be the Inventor of Incandescent Electric Lighting (Edison Electric Light Company, NY, 1889) Original wrappers. 20pp. In 1879 Thomas Edison conducted the first successful test of the first commercially practical incandescent light bulb, securing a patent for his electric lamp in January 1880. The Edison Electric Light Company went into immediate production, but in 1882 George Westinghouse’s company challenged Edison’s patent, which the US Patent Office subsequently declared to be invalid. There followed six years of litigation which ended in October 1889, when a federal judge ruled that Edison’s electric-light improvement claim was indeed valid – the decision hailed in this booklet by Edison’s company. The booklet is quite rare, located by WorldCat only at Yale and two other American institutions. Lot Amendments Condition: Front page detached otherwise very good Item number: 247570
Title: 1889 Court decision: Edison ‘declared the Inventor of Incandescent Electric Lighting’ Author: Place: Publisher: Date: 1889 Description: The Westinghouse - Edison Case / Sawyer and Man vs. Edison / Full text of Justice Bradley's Opinion...Pittsburgh, October 5, 1889 / Mr. Edison Declared to be the Inventor of Incandescent Electric Lighting (Edison Electric Light Company, NY, 1889) Original wrappers. 20pp. In 1879 Thomas Edison conducted the first successful test of the first commercially practical incandescent light bulb, securing a patent for his electric lamp in January 1880. The Edison Electric Light Company went into immediate production, but in 1882 George Westinghouse’s company challenged Edison’s patent, which the US Patent Office subsequently declared to be invalid. There followed six years of litigation which ended in October 1889, when a federal judge ruled that Edison’s electric-light improvement claim was indeed valid – the decision hailed in this booklet by Edison’s company. The booklet is quite rare, located by WorldCat only at Yale and two other American institutions. Lot Amendments Condition: Front page detached otherwise very good Item number: 247570
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.jpg "Source: Christie's")
.jpg "Source: Christie's")
