FR704323A - Perfectionnements apportés aux appareils d'éclairage tels, notamment, que les projecteurs utilisés à bord des engins de locomotion
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Perfectionnements apportés aux appareils d'éclairage tels, notamment, que les projecteurs utilisés à bord des engins de locomotion
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F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
F21V14/02—Controlling the distribution of the light emitted by adjustment of elements by movement of light sources
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FR704323D1930-10-241930-10-24Perfectionnements apportés aux appareils d'éclairage tels, notamment, que les projecteurs utilisés à bord des engins de locomotion
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(fr)
Perfectionnements apportés aux installations destinées à combattre les incendies, telles, notamment, que celles utilisées à bord des engins de locomotion
Perfectionnements apportés aux installations pour combattre les incendies, telles, notamment, que celles utilisées à bord des engins de locomotion aérienne
Perfectionnements apportés aux installations pour combattre les incendies, telles, notamment, que celles utilisées à bord des engins de locomotion aérienne