ITU - refers to the intent-to-use filing basis provided for in Trademark Act Section 1(b), 15 U.S.C. 1051(b). Applicants who have not yet used (in commerce that can be regulated ...
An differential equation in which the highest derivative is a first derivative, i.e. an ordinary differential equation of order 1. As an example, ''y' '' + ''xy'' = 1 is a first ...
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