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
GB817019A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MICHAEL GILBEY
Original Assignee
MICHAEL GILBEY
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 MICHAEL GILBEYfiledCriticalMICHAEL GILBEY
Priority to GB817019ApriorityCriticalpatent/GB145171A/en
Publication of GB145171ApublicationCriticalpatent/GB145171A/en
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
G10K13/00—Cones, diaphragms, or the like, for emitting or receiving sound in general
Landscapes
Physics & Mathematics
(AREA)
Engineering & Computer Science
(AREA)
Acoustics & Sound
(AREA)
Multimedia
(AREA)
Toys
(AREA)
Abstract
145,171. Barnard, T. K., and Gilbey, M. April 1. 1919. Sound - directing appliances. - A phonograph horn speaks into a concave deflector O in the lid of the case, made of veneer, three-ply wood or the like, and having curvature in one plane only.
GB817019A1919-04-011919-04-01Improvements in gramophones
ExpiredGB145171A
(en)