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A patent application or patent may contain drawings, also called patent drawings, illustrating the invention, some of its embodiments (which are particular implementations or methods of carrying out the invention), or the prior art. The drawings may be required by the law to be in a particular form, and the requirements may vary depending on ...
U.S. patent 487,796 - System of Electrical Transmission of Power - 1892 December 13 - Alternating current generator consisting of independent armature-circuits formed by conductors alternately disposed; Currents developed differ in phase and the field magnet poles in excess of the number of armature-circuits; Motor having independent energizing circuits connected to the armature-circuit of the ...
A drawing of a perpetual motion machine ... [The United States Patent office main classification of his 4151431 patent is as an "electrical generator or motor ...
Diagram of a reduced-gravity manoeuvre known as parabolic flight of the type Pais undertook during his PhD research. Source: NASA. Salvatore Pais attended Case Western Reserve University in Ohio, getting an MS in 1993 with a thesis titled "Design of an experiment for observation of thermocapillary convection phenomena in a simulated floating zone under microgravity conditions". [3]
patent number – name of patent (external links to patent images in TIFF format) Electrographic Vote-Recorder. U.S. patent 0,090,646 – Electrographic Vote-Recorder : Edison's first patent. Permitted a "yes" or "no" vote via one of two switches. Washington congressmen were not interested in the device and the invention was unsuccessful. (1869)
The original 1846 patent drawing was discovered in the Patent and Trademark Office of the director in 1997. [29] Its only omission is the usually required inventor's signature in a lower corner. [30] The Smithsonian Institution acquired about 10,000 patent models, including Lincoln's.
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