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DE499666C Expired / Lapsed DE ⏱️ 0.0 years remaining

Apparatus for carrying out the process described in patent 444428 for producing electric lamps with a light-diffusing or colored bell

Assignee: Osram GmbH
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Filing: 1929-03-10
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Granted: 1930-06-12
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Expires: 1949-03-10
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Abstract

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Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-11-06 20:08
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/14; B05B7/1404; B05B7/1454; B05B13/00; B05B13/06; B05B13/0627; B05B13/0636; C; C03; C03C; C03C17/00; H; H01; H01J; H01J9/00; H01J9/20; H01K; H01K3/00; H01K3/005

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