This is a division, of application Ser. No. 525,205, filed 11/19/74.
Number | Name | Date | Kind |
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2744056 | Offutt et al. | May 1956 |
Entry |
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Ross & Kerr, "Halloysite and Allophane," Prof. Paper, 185-G, 1934, U. S. Dept. of Interior, pp. 134-144. |
Carroll & Starkey, "Effect of Sea Water on Clay Minerals," 1960, Proc. of 7th National Conf. on Clays & Clay Minerals, pp, 80, 90-99. |
Karsulin & Stubican, Kolloid Z. 124, 169-176, (1951). |
Number | Date | Country | |
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Parent | 525205 | Nov 1974 |