FR466E
Expired / Lapsed
FR
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Variable flow valve system for steam heating with device for adjusting the maximum flow rate
Assignee: LAVERGNE JEAN SYLVESTRE
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Filing: 1902-05-22
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Granted: 1903-01-14
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Expires: 1922-05-22
Abstract
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Inventors
- 👤 Lavergne Jean-Sylvestre
Bibliographic Details
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FR
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2026-11-06 09:15
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