Patent for Optical Table

The patent PAT.219451 for the "Optical Table" invented by Piotr Wasylczyk
has been published on the 30th April 2015 by the Polish Patenting Office. The respective patent application P.398538 was submitted on 21.03.2012. Application summary: The subject of the invention is an optical table, with an upper layer (1)
 containing a number of threaded holes (4), a bottom layer (2), and a filling
 layer (3) in between the upper and lower layers, and at least partly
 elastically deformable sealing elements in the upper layer".
(translated from Polish)

Patent PAT.219451