The slide-valve and its functions / Lists

This work is on 2 lists.

Mechanics
by David E Hall
263 items Last modified October 24, 2016

Anything dealing with tools
Steam value
by Dave N Kirch
1 item Last modified July 31, 2016

imfor for type and consturtion of value

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When	What	Who	Comment
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46 seconds ago	Books not yet available (list) - diff	Flora Menzies	Removed Mr. Fortune Speaking from the list.
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