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DE569699C Expired / Lapsed DE ⏱️ 0.0 years remaining

Process and devices for preventing the formation of cavities and bubbles by generating a negative pressure over the liquid melt material

Assignee: WILHELM BOEHM DR
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Filing: 1927-02-24
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Granted: 1933-02-06
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Expires: 1947-02-24
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Abstract

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Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-11-08 11:12
CPC Classifications
C; C21; C21C; C21C1/00; C21C1/08; B; B22; B22D; B22D27/00; B22D27/15; B22D43/00; C21C7/00; C21C7/10

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