FR987981A - Lamp voltmeter device - Google Patents

Lamp voltmeter device

Info

Publication number
FR987981A
FR987981A FR987981DA FR987981A FR 987981 A FR987981 A FR 987981A FR 987981D A FR987981D A FR 987981DA FR 987981 A FR987981 A FR 987981A
Authority
FR
France
Prior art keywords
voltmeter device
lamp voltmeter
lamp
voltmeter
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
Roger Boy De La Tour
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 FR987981A publication Critical patent/FR987981A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/0046—Arrangements for measuring currents or voltages or for indicating presence or sign thereof characterised by a specific application or detail not covered by any other subgroup of G01R19/00
    • G01R19/0076—Arrangements for measuring currents or voltages or for indicating presence or sign thereof characterised by a specific application or detail not covered by any other subgroup of G01R19/00 using thermionic valves

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR987981D 1943-06-26 1943-06-26 Lamp voltmeter device Expired FR987981A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR987981T 1943-06-26

Publications (1)

Publication Number Publication Date
FR987981A true FR987981A (en) 1951-08-21

Family

ID=9539253

Family Applications (1)

Application Number Title Priority Date Filing Date
FR987981D Expired FR987981A (en) 1943-06-26 1943-06-26 Lamp voltmeter device

Country Status (1)

Country Link
FR (1) FR987981A (en)

Similar Documents

Publication Publication Date Title
FR919434A (en) Fixing device
FR892608A (en) Capping device
FR902142A (en) Detector
FR905427A (en) Toggle device
FR987981A (en) Lamp voltmeter device
FR903698A (en) Advanced one-sided locking device
FR901657A (en) Hinge device
FR900089A (en) Drawing instrument
FR895525A (en) Dibble
FR980731A (en) Dosing device
FR900564A (en) Progressive reduction device
FR896704A (en) Drilling device
FR987979A (en) Lamp voltmeter
FR1022806A (en) Lighting device
FR922692A (en) Thermo-electric device
FR893733A (en) Screw closure device
FR907219A (en) Register
FR912056A (en) Loading device
FR895348A (en) Advertising device
FR906219A (en) Direction-finding device
FR900958A (en) Fixing device
ES162508A1 (en) MEASUREMENT OR SIGNALING DEVICE
FR981488A (en) Microtome
FR938588A (en) Remote indicating device
AT174740B (en) Internal measuring device