Herman Kurth - Mount Vernon WA David Kemble - Mount Vernon WA Romeo N. Ubungen - Mount Vernon WA
International Classification:
F16L 5510 F16L 914
US Classification:
138149
Abstract:
A closable through insulation access aperture liner to permit inspection of the wall of an insulated pipe or vessel which liner isolates insulation and prevents insulation material, such as asbestos, from contamination of workers and work area.