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BS 942:1941

Formulae for calculating intensities of lighthouse beams and beams from cognate projection apparatus..

STANDARD published on 17.2.1941

English -
Print design (289.80 USD)

The information about the standard:

Designation standards: BS 942:1941
Note: WITHDRAWN
Publication date standards: 17.2.1941
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Category: Technical standards BS