Number | Name | Date | Kind |
---|---|---|---|
878508 | Couthri | Feb 1908 | |
1437685 | Scharpenberg et al. | Dec 1922 | |
1507712 | Proudfoot | Sep 1924 | |
1765347 | Shepard | Jun 1930 | |
2866621 | McIntyre | Dec 1958 | |
3584504 | Proctor et al. | Jun 1971 | |
3672471 | Badding | Jun 1972 | |
3809607 | Murray et al. | May 1974 | |
3936034 | Larrade | Feb 1976 |
Number | Date | Country |
---|---|---|
1916644 | Nov 1970 | DEX |
600968 | Dec 1959 | ITX |
Entry |
---|
"Materials Evaluation," Jul. 1970, vol. 28, (No. 7), pp. 162-166. |