AU289071B2 - Sound signalling device - Google Patents

Sound signalling device

Info

Publication number
AU289071B2
AU289071B2 AU64897/65A AU6489765A AU289071B2 AU 289071 B2 AU289071 B2 AU 289071B2 AU 64897/65 A AU64897/65 A AU 64897/65A AU 6489765 A AU6489765 A AU 6489765A AU 289071 B2 AU289071 B2 AU 289071B2
Authority
AU
Australia
Prior art keywords
signalling device
sound signalling
sound
signalling
Prior art date
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
AU64897/65A
Other versions
AU6489765A (en
Inventor
DOGGART and GEOFFREY ROY LAWTON JOHN
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.)
V &e Friedland Ltd
Original Assignee
V &e Friedland Ltd
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 V &e Friedland Ltd filed Critical V &e Friedland Ltd
Application granted granted Critical
Publication of AU6489765A publication Critical patent/AU6489765A/en
Publication of AU289071B2 publication Critical patent/AU289071B2/en
Expired legal-status Critical Current

Links

AU64897/65A 1964-10-07 1965-10-06 Sound signalling device Expired AU289071B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB40952/64 1964-10-07

Publications (2)

Publication Number Publication Date
AU6489765A AU6489765A (en) 1967-04-06
AU289071B2 true AU289071B2 (en) 1967-04-06

Family

ID=

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