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FREDERICK-GEORGE WALTER
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FREDERICK-GEORGE WALTER
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Application filed by FREDERICK-GEORGE WALTERfiledCriticalFREDERICK-GEORGE WALTER
Application grantedgrantedCritical
Publication of FR328363ApublicationCriticalpatent/FR328363A/fr
F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
F21K5/00—Light sources using charges of combustible material, e.g. illuminating flash devices
Landscapes
Engineering & Computer Science
(AREA)
General Engineering & Computer Science
(AREA)
FR328363D1903-01-081903-01-08Perfectionnements aux appareils d'éclairage instantané pour la photographie
ExpiredFR328363A
(fr)