FR544087A - Improvements to recording devices - Google Patents

Improvements to recording devices

Info

Publication number
FR544087A
FR544087A FR544087DA FR544087A FR 544087 A FR544087 A FR 544087A FR 544087D A FR544087D A FR 544087DA FR 544087 A FR544087 A FR 544087A
Authority
FR
France
Prior art keywords
recording devices
recording
devices
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
Emile Cheron
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR544087A publication Critical patent/FR544087A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • 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
    • G01D15/24—Drives for recording elements and surfaces not covered by G01D5/00
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F5/00—Means for displaying samples
    • G09F5/04—Cards of samples; Books of samples
FR544087D 1921-12-01 1921-12-01 Improvements to recording devices Expired FR544087A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR544087T 1921-12-01

Publications (1)

Publication Number Publication Date
FR544087A true FR544087A (en) 1922-09-14

Family

ID=8932041

Family Applications (1)

Application Number Title Priority Date Filing Date
FR544087D Expired FR544087A (en) 1921-12-01 1921-12-01 Improvements to recording devices

Country Status (1)

Country Link
FR (1) FR544087A (en)

Similar Documents

Publication Publication Date Title
FR552135A (en) Improvements to recording devices
FR544087A (en) Improvements to recording devices
FR544368A (en) Improvements to brushcutting devices
FR542108A (en) Improvements relating to recording devices
FR563835A (en) Improvements to tabulating devices
FR560571A (en) Improvements to gasifiers
FR521486A (en) Improvements to recording devices
FR509641A (en) Improvements to recording devices
FR544864A (en) Improvements to devices called trimmers
FR25731E (en) Improvements to phonographs
FR534546A (en) Improvements to phonographs
FR556799A (en) Improvements to phonographs
FR559341A (en) Improvements to seleno-radio-dosimeter
FR27158E (en) Improvements to radio-receivers
FR548710A (en) Improvements to cinematographic devices
FR536536A (en) Improvements to cinematographic devices
FR533098A (en) Improvements to cinematographic devices
FR530967A (en) Improvements to cinematographic devices
FR529480A (en) Improvements to cinematographic devices
FR515701A (en) Improvements to phonographic devices
FR25385E (en) Improvements to rotary devices called
FR533864A (en) Improvements to rotary devices called
FR26211E (en) Improvements to rotary devices called
FR25571E (en) Improvements to rotary devices called
FR25275E (en) Improvements to rotary devices called