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A small umbrella which may be removably attached to a beverage container in order to shade the beverage container from the direct rays of the sun.
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| Number | Title | Issue Date |
| 4035585 | Demodulator circuit in multiplex stereo and monophonic receiver An FM multiplex receiver comprises an averaging detection type demodulator circuitry. Two negative feedback paths lead from the L and R outputs of the switching circuit to the input of the amplifier, the output of which is connected to the input of the sw... | 07/12/1977 |
