Electric sound-producing device

Details Electric sound-producing device Electric sound-producing device

Category

G - Physics

Subcategory

08

Subsubcategory

B

CPC

84/63, 349/75

IPC codes

G08B 3/10 (2006.01) B06B 1/02 (2006.01) G10K 9/12 (2006.01)

Type

Patent

Patent number

CA 986754

Affiliated with

Also associated with

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