FR405828A - Système de fabrication de manchons réfractaires à armature de renforcement pour l'éclairage à incandescence par le gaz et les vapeurs d'hydrocarbure
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Système de fabrication de manchons réfractaires à armature de renforcement pour l'éclairage à incandescence par le gaz et les vapeurs d'hydrocarbure
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F21H—INCANDESCENT MANTLES; OTHER INCANDESCENT BODIES HEATED BY COMBUSTION
F21H1/00—Incandescent mantles; Selection of imbibition liquids therefor
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FR405828D1909-08-091909-08-09Système de fabrication de manchons réfractaires à armature de renforcement pour l'éclairage à incandescence par le gaz et les vapeurs d'hydrocarbure
ExpiredFR405828A
(fr)
Système de fabrication de manchons réfractaires à armature de renforcement pour l'éclairage à incandescence par le gaz et les vapeurs d'hydrocarbure