Classifications

• • G—PHYSICS
  • G10—MUSICAL INSTRUMENTS; ACOUSTICS
  • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
  • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
  • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
  • G10K9/13—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
  • F01B17/00—Reciprocating-piston machines or engines characterised by use of uniflow principle
  • F01B17/02—Engines
  • F01B17/04—Steam engines
• • G—PHYSICS
  • G08—SIGNALLING
  • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
  • G08B3/00—Audible signalling systems; Audible personal calling systems
  • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
  • F01B2170/00—Steam engines, e.g. for locomotives or ships
  • F01B2170/04—To-be-deleted with administrative transfer to parent group
  • F01B2170/0405—To-be-deleted with administrative transfer to parent group
  • F01B2170/0417—To-be-deleted with administrative transfer to parent group for locomobiles driven by small motors

Landscapes

• Physics & Mathematics (AREA)
• Engineering & Computer Science (AREA)
• Electromagnetism (AREA)
• Acoustics & Sound (AREA)
• Multimedia (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• General Physics & Mathematics (AREA)
• Switches Operated By Changes In Physical Conditions (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=25698118

Family Applications (1)

Country Status (2)

• 1965
  • 1965-04-22 CH CH563565A patent/CH468052A/fr unknown
  • 1965-05-06 CH CH631565A patent/CH468053A/fr unknown
• 1966
  • 1966-04-22 NL NL6605462A patent/NL6605462A/xx unknown

Also Published As

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