Quotables
"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 |
| 4598714 | Apparatus for measuring the thickness of corneas An apparatus is disclosed for measuring the thickness of the corneas. Corneal thickness is measured by first directing ultrasonic pulses towards the cornea and timing the interval between reflected pulses. The apparatus also includes a pulse stretcher for... | 07/08/1986 |
| 4546773 | Apparatus to measure conical thickness An apparatus is disclosed for measuring the thickness of the cornea and for regulating the depth of a surgical blade in relation to the local corneal thickness. Corneal thickness is measured by first directing ultrasonic pulses towards the cornea and timi... | 10/15/1985 |
