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Where was supernova 1987A located?
Machine
A device or apparatus designed to perform a specific task, often powered by electricity, mechanical force, or manual effort.
Patent Tests
Assessments or criteria used to determine the patentability of an invention, including novelty, non-obviousness, and usefulness.
Manufacture
The process of producing goods and products in large quantities using machinery, labor, and other resources.
Chemical Composition
The identity and proportion of the elements or compounds that make up a substance.
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