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which of these types of sampling is used
-A researcher interviews 19 work colleagues who work in his building.
Trademark
A distinctive mark, motto, device, or emblem that a manufacturer stamps, prints, or otherwise affixes to the goods it produces so that they can be identified on the market and their origins made known. Once a trademark is established (under common law or through registration), the owner is entitled to its exclusive use.
Patent
A government grant that gives an inventor the exclusive right or privilege to make, use, or sell an invention for a limited time period.
Copyright
The exclusive right of an author or other creator to publish, print, or sell an intellectual production for a statutory period of time.
Employment Law
The branch of law that deals with the rights and duties between employers and workers.
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