CH563639A5CH1718173ACH1718173ACH563639A5CH 563639 A5CH563639 A5CH 563639A5CH 1718173 ACH1718173 ACH 1718173ACH 1718173 ACH1718173 ACH 1718173ACH 563639 A5CH563639 A5CH 563639A5
Authority
CH
Switzerland
Application number
CH1718173A
Original Assignee
Kolar Karl
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 by Kolar KarlfiledCriticalKolar Karl
Publication of CH563639A5publicationCriticalpatent/CH563639A5/xx
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
G10K7/00—Sirens
G10K7/02—Sirens in which the sound-producing member is rotated manually or by a motor
G10K7/04—Sirens in which the sound-producing member is rotated manually or by a motor by an electric motor
Landscapes
Physics & Mathematics
(AREA)
Engineering & Computer Science
(AREA)
Acoustics & Sound
(AREA)
Multimedia
(AREA)
Motor Or Generator Frames
(AREA)
Sealing Devices
(AREA)
Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like
(AREA)
Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices
(AREA)
