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AT50782B
Expired / Lapsed
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Sighting device for determining height differences between the rails of railways.
Assignee: Heinrich Sandmann
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Filing: 1910-12-01
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Granted: 1911-11-25
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Expires: 1930-12-01
Abstract
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Inventors
- 👤 Heinrich Sandmann
Bibliographic Details
Application Number
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AT
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2026-10-23 21:21
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