单词：u.s. patent and trademark office
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By Jerilyn Watson Broadcast: October 6, 2003 (THEME) VOICE ONE: An office in the United States government has helped protect 1)the property rights of inventors for more than two-hundred years. Its job
VOA2003（下）-美国人文故事
This movie star is famous for her trademark smile. 这影星以她特有的微笑而文明。 trademark商标，放在另外一个名词前可表示特有的。
蒋健棠英语实用句子
National Siblings Day (NSD) is celebrated on April 10 each year in the USA. It is the brainchild of Claudia A. Evart, who created it after the deaths of her brother and sister. She wanted a day for all Americans to think about the importance of the r
世界节假日博览
National Siblings Day (NSD) is celebrated on April 10 each year in the USA. It is the brainchild of Claudia A. Evart, who created it after the deaths of her brother and sister. She wanted a day for all Americans to think about the importance of the r
英语课程学习计划和讲义
The United States has issued its 10 millionth patent. President George Washington signed the first almost 228 years ago. A patent is an official document that gives an individual or company the right to be the only one that makes or sells a product.
2018年VOA慢速英语(六)月
NEW YORK, Feb. 23 (Xinhua) -- NBA upstart Jeremy Lin has applied to the U.S. Patent and Trademark Office to trademark the term Linsanity. According to the trademark regulators' website, Lin filed his application on February 13, a move that would give
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