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FR894581A
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Electric light changing colorimeter with automatic equalization
Assignee: Joens & Co W H
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Filing: 1943-05-11
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Granted: 1944-12-28
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Expires: 1963-05-11
Abstract
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Inventors
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Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-23 22:37
CPC Classifications
G; G01; G01J; G01J1/00; G01J1/10; G01J1/20; G01J1/22; G01J1/24
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