Patent agency Käosaar & Co was founded in 1992 and it is one of the oldest patent agencies working in Estonia today.

Patent of the day:

A device for viewing and listening to birds

US 5168830

This device allows both watching birds and listening to them. A microphone, which is connected to speakers, is installed in a birdhouse. The speakers can be positioned anywhere you like, allowing you to enjoy birdsong even directly from your living room!  




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