Ebosa M-33, M34 M32 M32A, Tables and Grades Manual Year (1961)

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Ebosa M-33, M34 M32 M32A, Tables and Grades Manual Year (1961)

This Manual Covers Models: 
M-33
M34
M32
M32A

This Manual Includes:
Tables for the Determination of Unproductive Long Curve Risks
Required Grade for Unproductive Increases in Long Curve Slices

This Manual Has  63 Printed Pages.
Year 1961