ZA743001B - A radio alarm system - Google Patents

A radio alarm system

Info

Publication number
ZA743001B
ZA743001B ZA00743001A ZA743001A ZA743001B ZA 743001 B ZA743001 B ZA 743001B ZA 00743001 A ZA00743001 A ZA 00743001A ZA 743001 A ZA743001 A ZA 743001A ZA 743001 B ZA743001 B ZA 743001B
Authority
ZA
South Africa
Prior art keywords
alarm system
radio alarm
radio
alarm
Prior art date
Application number
ZA00743001A
Other languages
English (en)
Inventor
S Swales
Original Assignee
S Swales
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 S Swales filed Critical S Swales
Publication of ZA743001B publication Critical patent/ZA743001B/xx

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/04—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B47/00—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece
    • G04B47/02—Installations within mirrors, pictures, furniture or other household articles
    • G04B47/025—Installations within mirrors, pictures, furniture or other household articles in musical instruments or loudspeakers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Gerontology & Geriatric Medicine (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Transmitters (AREA)
ZA00743001A 1973-05-16 1974-05-10 A radio alarm system ZA743001B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2334473A GB1469508A (en) 1973-05-16 1973-05-16 Radio alarm system

Publications (1)

Publication Number Publication Date
ZA743001B true ZA743001B (en) 1975-05-28

Family

ID=10194127

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00743001A ZA743001B (en) 1973-05-16 1974-05-10 A radio alarm system

Country Status (5)

Country Link
AU (2) AU6896974A (enrdf_load_stackoverflow)
BE (1) BE815030A (enrdf_load_stackoverflow)
FR (1) FR2230029B1 (enrdf_load_stackoverflow)
GB (1) GB1469508A (enrdf_load_stackoverflow)
ZA (1) ZA743001B (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58148526A (ja) * 1982-02-26 1983-09-03 Mitsubishi Electric Corp 救難用信号装置
JPS60141886U (ja) * 1984-02-29 1985-09-19 株式会社　タカラ オ−デイオ玩具
US4769656A (en) * 1987-01-28 1988-09-06 Timex Corporation Expansion band antenna for a wrist instrument and method of making it
US4800543A (en) * 1987-12-03 1989-01-24 Ramtron Corporation Timepiece communication system
CH673748GA3 (en) * 1988-04-08 1990-04-12 Wrist-watch with HF transmitter and deployable antenna - has provision for completion of power supply circuit from battery as wire antenna is pulled out
GB2393301A (en) * 2002-09-17 2004-03-24 Nigel Jonathan Davies Personal defence system
CH700487B1 (fr) * 2006-09-22 2010-09-15 Synapse S A R L Dispositif de télé assistance et montre pour un tel dispositif.

Also Published As

Publication number Publication date
FR2230029A1 (enrdf_load_stackoverflow) 1974-12-13
AU6896974A (en) 1975-11-20
BE815030A (fr) 1974-09-02
GB1469508A (en) 1977-04-06
FR2230029B1 (enrdf_load_stackoverflow) 1982-01-29
AU1981476A (en) 1977-02-03

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