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"The abolishment of pain in surgery is a chimera. It is absurd to go on seeking it...knife and pain are two words in surgery that must forever be associated in the consciousness of the patient."
Dr. Alfred Velpeau, French surgeon ; 1839
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| Number | Title | Issue Date |
| 5213904 | Aluminum/steel transition joint A five-layered bonded metal product comprising a top layer of aluminum alloy, a second layer of aluminum, a third layer of titanium, a fourth layer of 70-30 copper-nickel, and a fifth layer of steel. The method of producing said multi-layered product comp... | 05/25/1993 |
| 5190831 | Bonded titanium/steel components A three-layered explosion bonded metal product comprising a layer of steel, a layer of titanium and an interlayer of 70-30 copper-nickel between the layer of steel and the layer of titanium. A method using explosive force is provided for bonding the three... | 03/02/1993 |
