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Montana Historical Society Archives
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November 2Sj 1960
L. J. Ingvelson Seneral Superintendent
Sconomy Report.
Dear 3ir:
A nylon fiber dust filter is being issued to employ
ees in operations where they hare previously been using vauze.
Joraparetive costs show that there will be a small savings. A
A fact more important is that the new filter is giving more
/
effective protection in dusty operations.
'Sincerely yours.
L^
z*'
Safety and elfare Engineer.
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ARCF 005009
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