One of the requirements for a patent is that the invention be new, or . an invention will not satisfy this requirement if it has already received a or been described in a printed publication, unless the publication was made by in the year before filing the patent application. in addition, if the invention was in public use, on , or otherwise available to elsewhere in the world, the invention is not patentable.

explanation:

pay attention. give the speaker your undivided attention, and acknowledge the message.

show that you're listening. use your own body language and gestures to show that you are engaged.

provide feedback.

defer judgment.

respond appropriately.

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chronological thinking is an indispensable tool to structure a historical narrative and to give meaning to a sequence of events. the final section presents the results of a survey to test the chronological thinking of lower secondary school students carried out by the educational research institute.