sammelbeh amp; auml; lter to eng amp; auml; uscharmen recording lead amp; auml; nd

摘要

sammelbeh & auml; lter (10)the eng & auml; uscharmenrecording lead & auml; ndin particular, lead & auml; ndglass by a hall & auml; lterboden (13), at leasta side wall (14, 15) and a hall & auml; lterdach (16) formed body(12) the beh & auml; lterinnenraum(17) limited, with at least a recording & all; opening r & t.; r & auml nde for purpose;and with beh & auml; lterinnenraum(17) the beh & auml; lterboden(13) at least a sectoral basis at least a first element (18) to theto reduce entstehendem k & all; rperschallis arranged, characterised by the fact that in beh & auml; lterinnenraum(17) the beh & auml; lterdach(16) and / or in the top of beh & auml; lterboden(13) square area (21), at least one side wall (14, 15)at least a sectoral basis, at least a second element (19)reduction of airborne entstehendem is arranged.