GB9114294D0 - Apparatus for the protection of an external alarm housing - Google Patents

Apparatus for the protection of an external alarm housing

Info

Publication number
GB9114294D0
GB9114294D0 GB919114294A GB9114294A GB9114294D0 GB 9114294 D0 GB9114294 D0 GB 9114294D0 GB 919114294 A GB919114294 A GB 919114294A GB 9114294 A GB9114294 A GB 9114294A GB 9114294 D0 GB9114294 D0 GB 9114294D0
Authority
GB
United Kingdom
Prior art keywords
protection
external alarm
alarm housing
housing
external
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.)
Withdrawn
Application number
GB919114294A
Other versions
GB2246228A (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.)
Shorrock Ltd
Original Assignee
Shorrock 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 Shorrock Ltd filed Critical Shorrock Ltd
Publication of GB9114294D0 publication Critical patent/GB9114294D0/en
Publication of GB2246228A publication Critical patent/GB2246228A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means
    • G01V8/10—Detecting, e.g. by using light barriers
    • G01V8/12—Detecting, e.g. by using light barriers using one transmitter and one receiver

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Burglar Alarm Systems (AREA)
GB9114294A 1990-07-20 1991-07-02 Apparatus for the protection of an external alarm housing Withdrawn GB2246228A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB909015928A GB9015928D0 (en) 1990-07-20 1990-07-20 Apparatus for protection of an external alarm housing

Publications (2)

Publication Number Publication Date
GB9114294D0 true GB9114294D0 (en) 1991-08-21
GB2246228A GB2246228A (en) 1992-01-22

Family

ID=10679370

Family Applications (2)

Application Number Title Priority Date Filing Date
GB909015928A Pending GB9015928D0 (en) 1990-07-20 1990-07-20 Apparatus for protection of an external alarm housing
GB9114294A Withdrawn GB2246228A (en) 1990-07-20 1991-07-02 Apparatus for the protection of an external alarm housing

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB909015928A Pending GB9015928D0 (en) 1990-07-20 1990-07-20 Apparatus for protection of an external alarm housing

Country Status (1)

Country Link
GB (2) GB9015928D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2254944B (en) * 1991-04-19 1994-10-19 Scantronic Ltd Improvements relating to alarm bell systems
GB2288901A (en) * 1994-04-30 1995-11-01 Pedro Francisco Marrero Alarm system with foam detection unit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2182182B (en) * 1985-04-24 1989-06-28 Sound Special Services Limited Intrusion detecting device
US4829174A (en) * 1986-09-29 1989-05-09 General Motors Corporation Flexible tube optical intrusion detector
AT391735B (en) * 1988-09-01 1990-11-26 Mewald Gmbh FEELING BAR

Also Published As

Publication number Publication date
GB2246228A (en) 1992-01-22
GB9015928D0 (en) 1990-09-05

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)