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Compteurs Schlumberger SA
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Compteurs Schlumberger SA
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Application filed by Compteurs Schlumberger SAfiledCriticalCompteurs Schlumberger SA
Application grantedgrantedCritical
Publication of FR1025446ApublicationCriticalpatent/FR1025446A/en
G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
G01D15/00—Component parts of recorders for measuring arrangements not specially adapted for a specific variable
G01D15/14—Optical recording elements; Recording elements using X-or nuclear radiation
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Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR1025446D1950-10-041950-10-04
Improvements to recording devices
ExpiredFR1025446A
(en)