DE197315C
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DE224916C
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DE219467C
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DE2141791C3
(de )
1978-11-02
Elektrische Glühlampe
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DE274488C
(de )
1914-05-23
Fadentraggestell fuer elektrische Gluehlampen
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(de )
1924-03-21
Vorrichtung zum Formen des zickzackfoermig gewickelten Metallgluehfadens
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(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html )
DE457177C
(de )
1928-03-09
Elektrische Gluehlampe mit Wolframleuchtkoerper
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DE210776C
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(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html )
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(de )
1911-01-10
Elektrische Glühlampe mit Innenreflektor.
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DE370603C
(de )
1923-03-05
Verfahren zur Erneuerung der Gluehfaeden elektrischer Gluehlampen
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(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html )
DE721452C
(de )
1942-06-05
Elektrische Roehrengluehlampe mit glattem Leuchtdraht, insbesondere fuer optische Zwecke
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(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html )
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