"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "
Mark Twain ; Christmas greetings, 1890
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| Number | Title | Issue Date |
| 5529438 | Geosynthetic clay liner with modified edges for improved sealing A clay liner is provided for use in constructing low permeability barriers in the bottom of landfills and man-made bodies of water. The liner is provided in the form of a layer of bentonite preferably disposed between a primary carrier sheet and a cover s... | 06/25/1996 |
| 4927297 | Leak prevention structure, method and apparatus The invention relates to a barrier for soil structures. The barrier is formed by creating a trench in a soil structure extending from the soil surface to an impervious layer in the soil. The trench is lined with a sheet of impervious material, which may b... | 05/22/1990 |
| 4501788 | Waterproofing soil A method and a product providing for waterproofing soil utilizing a flexible non-biodegradable support capable of venting gas coated with water swellable bentonite and covering the soil to be waterproofed with the coated support.... | 02/26/1985 |