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Technical | Ventilation | Mechanical > Walker fans
Section under development
The ‘ Walker Indestructible’ Fan, a direct descendant of the Guibal Fan, was patented in 1887 (no. 17141)
Walker Indestructable fan construction
Walker Indestructable fan - side elevation
Walker Indestructable fan - end elevation
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12 Aug, 2011
at
04:59:22 PM
