Date: | 1882 |
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Description: | A man shows off an incandescent lamp switchboard with bamboo filiament, lamp receptacle with wooden base, current and pressure indicators and controlling d... |
Date: | |
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Description: | Either way, the sides are bridged, from wine to water, cutting back to wine Paradoxical appointments, anticipated hour — No one event can ... |
Date: | 10 30 1959 |
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Description: | Frank E. Nordeen, a state engineering employee, pointing to the main electric switchboard in the State Capitol building basement, while standing next to an... |
Date: | 10 30 1959 |
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Description: | Leon A. Hendrickson, supervisor of services, pointing to a blower which is used to send air into the tunnel carrying power lines from the state power plant... |
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