Date: | 09 20 1956 |
---|---|
Description: | Katharine Mather of the Corps of Engineers Waterways Experiment Station checks a computer analysis of the composition of cement. |
Date: | 10 09 1956 |
---|---|
Description: | Original Falk caption reads: "Mill Gears, 21 or 22.289T, 1 1/2 DP, 26 inch F. 100 hp, 18.3 rpm mills." Purchaser was Allis Chalmers and it was used by the ... |
If you didn't find the material you searched for, our Library Reference Staff can help.
Call our reference desk at 608-264-6535 or email us at: