Classifications

• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
  • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
  • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
  • A47L9/19—Means for monitoring filtering operation
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K27/00—AC commutator motors or generators having mechanical commutator
  • H02K27/12—AC commutator motors or generators having mechanical commutator having multi-phase operation
  • H02K27/14—AC commutator motors or generators having mechanical commutator having multi-phase operation in series connection
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
  • H04N23/40—Circuit details for pick-up tubes
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N5/00—Details of television systems
  • H04N5/38—Transmitter circuitry for the transmission of television signals according to analogue transmission standards
  • H04N5/40—Modulation circuits

Applications Claiming Priority (1)

Publications (1)

Family

ID=6510584

Family Applications (1)

Country Status (3)

• 1912
  • 1912-02-23 FR FR440523A patent/FR440523A/fr not_active Expired
• 1941
  • 1941-02-08 FR FR869866D patent/FR869866A/fr not_active Expired
  • 1941-02-10 BE BE440523D patent/BE440523A/xx unknown
  • 1941-02-20 NL NL100405A patent/NL58636C/xx active

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