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Patent DE389529C successfully refreshed from Google Patents.
DE389529C
Expired / Lapsed
DE
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Device for generating interference fringes
Assignee: FRIEDRICH FRANZ MARTENS DR
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Filing: —
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Granted: 1924-02-04
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Expires: 1941-02-04
Abstract
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Bibliographic Details
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DE
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2026-11-01 14:11
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