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Actor Marlon Brando has four patents, all named "Drumhead tensioning device and method."
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| Number | Title | Issue Date |
| 6083368 | Probe device for continuous measurements of oxygen in running molten metal An external conductive protection tube has in a front half wall thereof a front opening formed therein with a front open area large enough to leave molten metal running in due course to inflow therethrough inside the protection tube and advance as it move... | 07/04/2000 |
| 5894082 | Apparatus for measuring oxygen within molten substance An apparatus for measuring oxygen within a molten substance comprises a compact oxygen probe unit constructed by assembling a tubular shell whose one end is closed, which is made of solid electrolyte and which is to be soaked into the molten substance to ... | 04/13/1999 |
| 5741072 | Temperature sensor element for a temperature-measuring device A temperature sensor element in a temperature-measuring device using a thermocouple having excellent insulation property and having a simple assembly procedure is provided. The temperature sensor element comprises a temperature-measuring means consisting ... | 04/21/1998 |
| 4984904 | Apparatus for continuously measuring temperature of molten metal and method for making same An apparatus for continuously measuring temperatures of molten metal including a thermocouple unit (A) and an immersion protection tube unit (B), wherein the thermocouple unit (A) comprises a thermocouple (1) having an end equipped with a temperature sens... | 01/15/1991 |
| 4261202 | Apparatus for determining carbon contents in molten metal An apparatus for determining carbon contents in molten metal comprising an entrance chamber with an entry port in a side wall, a sampling chamber, a ring-shaped disk to be set between both chambers and a temperature sensing means which is protected from t... | 04/14/1981 |
