## IUumination Meter Records Changing Light Values.--Rapid fluctuations in illumination intensity are accurately recorded by a new photoelectric light recorder introduced by the Weston Electrical Instrument Corp. Developed originally to chart the fast-changing light output of railway fuses, this n
โฆ LIBER โฆ
NBS antifreeze tester
- Publisher
- Elsevier Science
- Year
- 1951
- Tongue
- English
- Weight
- 171 KB
- Volume
- 252
- Category
- Article
- ISSN
- 0016-0032
No coin nor oath required. For personal study only.
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