Noise suppressor for vacuum sweeper and the like

Acoustics – Auditorium

Patent

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Details

15326, 181 36A, 181 33K, F01N 306, A47L 500

Patent

active

040156834

ABSTRACT:
A noise suppressor package attachable to air exhaust tubing comprises:

REFERENCES:
patent: 2253310 (1941-08-01), Smellie
patent: 2328236 (1943-08-01), Stoner
patent: 3638755 (1972-02-01), Sack
patent: 3757891 (1973-09-01), Krieger
patent: 3842932 (1974-10-01), Gibel

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