| 000 | 00272nam a2200085Ia 4500 | ||
|---|---|---|---|
| 008 | 180131b1961 xxu||||| |||| 00| 0 eng d | ||
| 080 |
_a _b |
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| 100 | _a | ||
| 245 | _aEra-V/T144 - 1961; Effect Of Small Voltage Flutuations On The Light Output Of Tungsten Filament Lamp | ||
| 260 |
_a _bERATechnology Ltd _c1961 |
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| 999 |
_c64491 _d64491 |
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