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DUPLICATE. The double of anything.
     2. It is usually applied to agreements, letters, receipts, and the like, when two originals are made of either of them. Each copy has the same effect. The term duplicate means a document, which is essentially the same as some other instrument. 7 Mann. & Gr. 93. In the English law, it also signifies the certificate of discharge given to an insolvent debtor, who takes the benefit of the act for the relief of insolvent debtors.
     3. A duplicate writing has but one effect. Each duplicate is complete evidence of the intention of the parties. When a duplicate is destroyed, for example, in the case of a will, it is presumed. both are intended to be destroyed; but this presumption possesses greater or less force) owing to circumstances. When only one of the duplicates is in the possession of the testator, the destruction of that is a strong presumption of an intent to revoke both; but if he possessed both, and destroys but one, it is weaker; when he alters one, and afterwards destroys it , retaining the other entire, it has been held that the intention was to revoke both. 1 P. Wms. 346; 13 Ves. 310 but that seems to be doubted. 3 Hagg. Eccl. R. 548.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.
References in periodicals archive ?
Appendicectomy is the one of the most common surgical procedure and appendiceal duplication is the rarest of the gastrointestinal anomalies.
Customers don't think a natural disaster will affect them but Duplication Media has helped numerous people after tornadoes, fires, and even hurricanes.
Practice: It's duplication when you do the success clues that you find.
On his first day of life, laparotomy was performed that showed duplicated rectum, colon, cecum, and appendix and duplication of 5 cm of terminal ileum.
The duplication of the EJV occurred in 4% of the specimens in this study, furthermore the transverse cervical vein drained into one part of the EJV, while the transverse cervical nerve intertwined with the EJV.
Genoglyphix[R] Analysis software suggests this area of duplication is comprised of at least 72 genes, of which 43 are OMIM genes.
Since its recent discovery in 1999 [1], 22q11.2 duplication syndrome has been found to be associated with a highly variable neuropsychiatric phenotype, including learning disability [2], intellectual disability (ID), and, most recently, autism spectrum disorder (ASD) [3-5].
The phenotypes resulting from sSMC duplication vary widely depending on the origin.
Duplication cysts of the gastrointestinal tract are a rare anomaly and have been reported in literature mostly as incidental findings following investigations for symptomology that have not been explained by other pathology [1-5].
To better understand how these deletions and duplications affected the brains of autism patients, the researchers performed MRI brain scans on 79 patients who had the genetic deletion associated with autism, and 79 individuals with the duplication.