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AT104997B Expired / Lapsed AT ⏱️ 0.0 years remaining

Electrically heated steam superheater.

Assignee: Aeg Union Elek Wien
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Filing: 1925-11-06
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Granted: 1926-12-10
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Expires: 1945-11-06
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Last Synchronized 2026-10-26 12:21
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