by National Research Council (U.S.). Highway Research Board. Committee on Curing of Concrete.
![[William Wheeler Hubbell, authorized to apply for patents.]](https://covers.openlibrary.org/b/id/10200621-M.jpg)
United States. Congress. Senate. Committee on Patents
Max Bill
Jack C. McCormac
Ravindra Dhir
Rajib Basu Mallick
James G. MacGregor
