Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Compagnie des Lampes
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Compagnie des Lampes
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Application filed by Compagnie des LampesfiledCriticalCompagnie des Lampes
Application grantedgrantedCritical
Publication of FR609294ApublicationCriticalpatent/FR609294A/fr
H01J5/08—Vessels; Containers; Shields associated therewith; Vacuum locks provided with coatings on the walls thereof; Selection of materials for the coatings
FR609294D1925-04-161925-04-16Perfectionnements dans l'art de l'éclairage
ExpiredFR609294A
(fr)