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Walther and Co AG
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Walther and Co AG
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Application filed by Walther and Co AGfiledCriticalWalther and Co AG
Application grantedgrantedCritical
Publication of FR416295ApublicationCriticalpatent/FR416295A/fr
FR416295D1909-05-241910-05-24Dispositif pour l'enlèvement automatique des résidus de la combustion dans les foyers avec grilles à chaine
ExpiredFR416295A
(fr)
Dispositif de fermeture automatique, applicable au tirage des chaudières à vapeur, pour empecher le refroidissement pendant le chargement et le nettoyage des grilles