PS Magazine - MAY 1953

PS, The Preventative Maintenance Monthly

ISSUE 12

MAY 1953

PS Magazine - MAY 1953 - Page 15 of 48
which is measured In RelAtioN To
tHE lENgth of the boLT±s s²rE²C³
aReA, no MaTteR wha² ´³e DiA
m
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to ÉeRÊoRm its smaËËeR DUTYÌ As tÍE
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to
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² ma²´eR iÙ THE
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5À9


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