GB2059660B - Alarm system holdable by hand - Google Patents

Alarm system holdable by hand

Info

Publication number
GB2059660B
GB2059660B GB7933111A GB7933111A GB2059660B GB 2059660 B GB2059660 B GB 2059660B GB 7933111 A GB7933111 A GB 7933111A GB 7933111 A GB7933111 A GB 7933111A GB 2059660 B GB2059660 B GB 2059660B
Authority
GB
United Kingdom
Prior art keywords
holdable
hand
alarm system
alarm
system holdable
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
GB7933111A
Other versions
GB2059660A (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB7933111A priority Critical patent/GB2059660B/en
Publication of GB2059660A publication Critical patent/GB2059660A/en
Application granted granted Critical
Publication of GB2059660B publication Critical patent/GB2059660B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • 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
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/02—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by gas; e.g. suction operated
    • G10K9/04—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by gas; e.g. suction operated by compressed gases, e.g. compressed air

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Emergency Alarm Devices (AREA)
GB7933111A 1979-09-25 1979-09-25 Alarm system holdable by hand Expired GB2059660B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7933111A GB2059660B (en) 1979-09-25 1979-09-25 Alarm system holdable by hand

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7933111A GB2059660B (en) 1979-09-25 1979-09-25 Alarm system holdable by hand

Publications (2)

Publication Number Publication Date
GB2059660A GB2059660A (en) 1981-04-23
GB2059660B true GB2059660B (en) 1983-06-22

Family

ID=10508038

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7933111A Expired GB2059660B (en) 1979-09-25 1979-09-25 Alarm system holdable by hand

Country Status (1)

Country Link
GB (1) GB2059660B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127202A (en) * 1982-08-31 1984-04-04 Strongman Security Products Li Alarm device
US4950107A (en) * 1988-10-12 1990-08-21 Hancock David A Audible alarm device for divers

Also Published As

Publication number Publication date
GB2059660A (en) 1981-04-23

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee