AU472349B2 - Security systems - Google Patents

Security systems

Info

Publication number
AU472349B2
AU472349B2 AU48578/72A AU4857872A AU472349B2 AU 472349 B2 AU472349 B2 AU 472349B2 AU 48578/72 A AU48578/72 A AU 48578/72A AU 4857872 A AU4857872 A AU 4857872A AU 472349 B2 AU472349 B2 AU 472349B2
Authority
AU
Australia
Prior art keywords
security systems
security
systems
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
AU48578/72A
Other languages
English (en)
Other versions
AU4857872A (en
Inventor
LEWIS and WILLIAM DUDLEY GILMOUR 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.)
Lewis Security Systems Ltd
Original Assignee
Lewis Security Systems 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 Lewis Security Systems Ltd filed Critical Lewis Security Systems Ltd
Publication of AU4857872A publication Critical patent/AU4857872A/en
Application granted granted Critical
Publication of AU472349B2 publication Critical patent/AU472349B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00182—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with unidirectional data transmission between data carrier and locks
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00571—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by interacting with a central unit
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/20—Individual registration on entry or exit involving the use of a pass
    • G07C9/27—Individual registration on entry or exit involving the use of a pass with central registration
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
    • G07C2009/00777—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means by induction
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C2209/00—Indexing scheme relating to groups G07C9/00 - G07C9/38
    • G07C2209/60—Indexing scheme relating to groups G07C9/00174 - G07C9/00944
    • G07C2209/63—Comprising locating means for detecting the position of the data carrier, i.e. within the vehicle or within a certain distance from the vehicle
    • G07C2209/64—Comprising locating means for detecting the position of the data carrier, i.e. within the vehicle or within a certain distance from the vehicle using a proximity sensor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S70/00—Locks
    • Y10S70/49—Locks with alarm

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Burglar Alarm Systems (AREA)
  • Lock And Its Accessories (AREA)
  • Radar Systems Or Details Thereof (AREA)
AU48578/72A 1971-11-08 1972-11-07 Security systems Expired AU472349B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB2289872*[A GB1414119A (en) 1971-11-08 1971-11-08 Security system for responding to the movement of individuals
GBGB51724/71 1971-11-08
GB2289872 1972-05-16

Publications (2)

Publication Number Publication Date
AU4857872A AU4857872A (en) 1974-05-09
AU472349B2 true AU472349B2 (en) 1976-05-20

Family

ID=26256172

Family Applications (1)

Application Number Title Priority Date Filing Date
AU48578/72A Expired AU472349B2 (en) 1971-11-08 1972-11-07 Security systems

Country Status (16)

Country Link
US (1) US3891980A (xx)
JP (1) JPS5047597A (xx)
AU (1) AU472349B2 (xx)
BE (1) BE791039A (xx)
CA (1) CA997445A (xx)
CH (1) CH577723A5 (xx)
DE (1) DE2254637A1 (xx)
ES (1) ES408555A1 (xx)
FR (1) FR2159362B1 (xx)
GB (2) GB1414119A (xx)
HK (2) HK29681A (xx)
IL (1) IL40760A (xx)
IT (1) IT973404B (xx)
NL (1) NL175557C (xx)
SE (1) SE392651B (xx)
ZA (1) ZA727892B (xx)

Families Citing this family (101)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3838409A (en) * 1973-04-13 1974-09-24 Knogo Corp Field strength uniformity control system for article theft detection system
US4042970A (en) * 1976-02-13 1977-08-16 Wagner Electric Corporation Dual frequency narrow-band frequency modulated keyable control circuit and keying circuit therefor
US4090182A (en) * 1976-03-22 1978-05-16 Robert Bruno Young Security system employing radio transmitter and receiver
US4080594A (en) * 1976-07-14 1978-03-21 Plevy Arthur L Doppler shift actuator and intrusion systems
US4471343A (en) * 1977-12-27 1984-09-11 Lemelson Jerome H Electronic detection systems and methods
US4215342A (en) * 1978-03-31 1980-07-29 Intex Inc. Merchandise tagging technique
WO1981001063A1 (en) * 1979-10-09 1981-04-16 Mastiff Security Syst Ltd Computer system
EP0030587A1 (en) * 1979-12-18 1981-06-24 Iwasaki Engineering Co., Ltd. Electronic locking device
US4412356A (en) * 1980-01-14 1983-10-25 Iowa State University Research Foundation, Inc. Light actuated remote control security system
US4281321A (en) * 1980-06-09 1981-07-28 Sensormatic Electronics Corporation Surveillance system employing a floor mat radiator
JPS57501253A (xx) * 1980-07-21 1982-07-15
US4353064A (en) * 1981-01-14 1982-10-05 Honeywell Inc. Battery operated access control card
FI66696C (fi) * 1981-06-12 1984-11-12 Saehkoeliikkeiden Oy Foerfarande foer foerverkligande av en till en person bunden anropningsprocess
GB2119431B (en) * 1982-04-23 1985-05-01 Reilor Ltd Control circuit for a door
JPS5965173A (ja) * 1982-10-04 1984-04-13 株式会社日本自動車部品総合研究所 車両用蓋体解錠装置
US4591854A (en) * 1982-10-12 1986-05-27 Roundel Electronics Limited Touch control identification system with portable encoder
DE3244049C2 (de) * 1982-11-27 1986-06-26 Kiekert GmbH & Co KG, 5628 Heiligenhaus Zentralverriegelungsanlage für ein Kraftfahrzeug
GB2145550A (en) * 1983-07-28 1985-03-27 Dr Maurice Bloch Remote monitoring radio link
JPS6065875A (ja) * 1983-09-19 1985-04-15 日産自動車株式会社 車両用施錠制御装置
JPS6064537A (ja) * 1983-09-19 1985-04-13 Nissan Motor Co Ltd 誘導電磁界を媒体とする車両用無線伝送装置
JPS6064272A (ja) * 1983-09-19 1985-04-12 Nissan Motor Co Ltd 無線式制御装置
US4719460A (en) * 1983-09-19 1988-01-12 Nissan Motor Company, Limited Keyless entry system for automotive vehicle devices with theft-prevention feature
FR2555641B1 (fr) * 1983-11-24 1989-11-03 Lewiner Jacques Perfectionnements aux dispositifs de controle des acces comportant plusieurs serrures
JPS60119873A (ja) * 1983-11-29 1985-06-27 日産自動車株式会社 車両用施錠制御装置
US4672375A (en) * 1983-11-29 1987-06-09 Nissan Motor Company, Limited Keyless entry system for automotive devices with compact, portable wireless code transmitter, and feature for preventing users from locking transmitter in vehicle
FR2556115B1 (fr) * 1983-12-02 1987-05-07 Lewiner Jacques Perfectionnements aux dispositifs de commande a code
US4587522A (en) * 1984-01-27 1986-05-06 Warren Bob E Vehicle warning system
US4868915A (en) * 1984-02-23 1989-09-19 Allied Corporation Keyless entry system having remote marker for motor vehicles
US4576244A (en) * 1984-02-23 1986-03-18 Zemco, Inc. Dieter's weighing scale
JPS60183246A (ja) * 1984-03-01 1985-09-18 Nissan Motor Co Ltd 車両用施解錠制御装置
US4688026A (en) * 1984-05-15 1987-08-18 Scribner James R Method of collecting and using data associated with tagged objects
GB8421715D0 (en) * 1984-08-28 1984-10-03 Buttemer D A Loop detector
NO853689L (no) * 1984-09-28 1986-04-01 Inga Abel Innretning til overv¨kning av personer i ¨pne eller halv¨p ne anstalter, samt armb¨nd til bruk i forbindelse med denn e innretningen.
JPS61196080A (ja) * 1985-02-21 1986-08-30 日産自動車株式会社 無線式利用者識別装置
FR2582429A1 (fr) * 1985-05-22 1986-11-28 Capron Michel Dispositif electronique d'alarme detectant et reconnaissant les individus
US4622542A (en) * 1985-06-26 1986-11-11 Controlled Information Corporation Magnetic article surveillance system, method and coded marker
US4835372A (en) * 1985-07-19 1989-05-30 Clincom Incorporated Patient care system
JPS6238035A (ja) * 1985-08-12 1987-02-19 Nissan Motor Co Ltd 薄板型携帯機
JPS6237479A (ja) * 1985-08-12 1987-02-18 日産自動車株式会社 無線式施解錠制御装置
US4786900A (en) * 1985-09-30 1988-11-22 Casio Computer Co. Ltd. Electronic key apparatus
JPS6278379A (ja) * 1985-09-30 1987-04-10 日産自動車株式会社 車両用施解錠制御装置
JPS62101769A (ja) * 1985-10-28 1987-05-12 国産金属工業株式会社 車輌の電波錠システム
JPS62121285A (ja) * 1985-11-21 1987-06-02 株式会社アルファ 車輌の電波錠システム
JPS62101768A (ja) * 1985-10-28 1987-05-12 国産金属工業株式会社 車輌の電波錠システム
GR861382B (en) * 1985-11-13 1987-02-06 Pelta Elettronica S P A System for remote control of the antitheft protection devices of a property
US4659314A (en) * 1986-02-07 1987-04-21 Weinblatt Lee S Survey technique for readership of publications
US4726771A (en) * 1986-02-07 1988-02-23 Weinblatt Lee S Flat switch insertable into a magazine and usable as part of a survey technique for readership of publications
FR2594574B1 (fr) * 1986-02-17 1988-11-25 Jaeger Dispositif de protection concu pour detecter et/ou interdire le franchissement d'une ouverture par toute personne non autorisee
GB8604622D0 (en) * 1986-02-25 1986-04-03 Ayton J B Security system
USRE33873E (en) * 1986-02-27 1992-04-07 Microcomputer controlled combination lock security system
US4755799A (en) * 1986-02-27 1988-07-05 James Romano Microcomputer controlled combination lock security system
US4857716A (en) * 1986-05-12 1989-08-15 Clinicom Incorporated Patient identification and verification system and method
US4850009A (en) * 1986-05-12 1989-07-18 Clinicom Incorporated Portable handheld terminal including optical bar code reader and electromagnetic transceiver means for interactive wireless communication with a base communications station
JPH0625503B2 (ja) * 1986-06-20 1994-04-06 日産自動車株式会社 解錠制御装置
JPS6337279A (ja) * 1986-08-01 1988-02-17 Wako Sangyo:Kk 物品の移動検知システム
US4779090A (en) * 1986-08-06 1988-10-18 Micznik Isaiah B Electronic security system with two-way communication between lock and key
US4779076A (en) * 1987-05-20 1988-10-18 Controlled Information Corp. Deactivatable coded marker and magnetic article surveillance system
US5475366A (en) * 1988-12-05 1995-12-12 Prince Corporation Electrical control system for vehicle options
US5614885A (en) * 1988-12-05 1997-03-25 Prince Corporation Electrical control system for vehicle options
US4970494A (en) * 1989-11-20 1990-11-13 Keely William A Radio controlled home security system
US5113182B1 (en) * 1990-01-19 1995-11-07 Prince Corp Vehicle door locking system detecting that all doors are closed
US5455716A (en) * 1990-08-14 1995-10-03 Prince Corporation Vehicle mirror with electrical accessories
US5266783A (en) * 1991-05-13 1993-11-30 First Tracks Identification system requiring momentary contact by limb-worn ID unit with reader detector array
US5339074A (en) * 1991-09-13 1994-08-16 Fluoroware, Inc. Very low frequency tracking system
US5315289A (en) * 1991-09-16 1994-05-24 Fuller Terry A Anticipatory interactive protective system
JP2877594B2 (ja) * 1991-11-14 1999-03-31 富士通株式会社 入場者管理システム
US5245317A (en) * 1991-12-18 1993-09-14 Duncan Chidley Article theft detection apparatus
US5231364A (en) * 1992-06-24 1993-07-27 Nokia Mobile Phones, Ltd. Phaseshift network for an IQ modulator
AUPM402394A0 (en) * 1994-02-23 1994-03-17 Monaad Corporation Pty Limited Security access arrangement
IT1271382B (it) * 1994-05-31 1997-05-27 Alessandro Manneschi Rivelatore di metalli per controllo accessi combinato in forma integrata con rivelatore a trasponder
WO1996007188A1 (en) * 1994-08-26 1996-03-07 Rohm Co., Ltd. Chip type thick film capacitor and method of making the same
US5541585A (en) * 1994-10-11 1996-07-30 Stanley Home Automation Security system for controlling building access
JPH08254050A (ja) * 1995-03-17 1996-10-01 Toshiba Corp 入退室管理装置
US5973611A (en) * 1995-03-27 1999-10-26 Ut Automotive Dearborn, Inc. Hands-free remote entry system
US6414597B1 (en) * 1996-06-21 2002-07-02 Avid Marketing, Inc. Electronic identification system extended-range reader
ITTO980146A1 (it) * 1998-02-25 1999-08-25 Alessandro Manneschi Sistema rivelatore per controllo di accesso e relativo gruppo rivela- tore.
AUPP277798A0 (en) 1998-04-03 1998-04-30 Robert Bosch Gmbh Detection system
US5959530A (en) * 1998-07-29 1999-09-28 Xerox Corporation Remote computer security system for computers, printers and multifunction devices
US6057764A (en) * 1998-08-20 2000-05-02 Williams; Melvin P. Dynamically bypassed alarm system
DE29901677U1 (de) * 1999-02-01 2000-06-29 Hoermann Kg Antriebstechnik Torantrieb mit automatischer Zutrittskontrolle
US6577226B1 (en) * 1999-04-27 2003-06-10 Trw Inc. System and method for automatic vehicle unlock initiated via beam interruption
US6211790B1 (en) 1999-05-19 2001-04-03 Elpas North America, Inc. Infant and parent matching and security system and method of matching infant and parent
US6448894B1 (en) * 1999-09-30 2002-09-10 Siemens Automotive Corporation Passive actuation of home security system
US6307471B1 (en) * 1999-12-01 2001-10-23 Ensure Technologies, Inc. Radio based proximity token with multiple antennas
US7064651B2 (en) 2000-04-12 2006-06-20 Goetz Joseph R Automatic vehicle theft prevention system
US6720874B2 (en) * 2000-09-29 2004-04-13 Ids Systems, Inc. Portal intrusion detection apparatus and method
US20020158761A1 (en) 2001-04-27 2002-10-31 Larry Runyon Radio frequency personnel alerting security system and method
US6661343B1 (en) * 2001-08-27 2003-12-09 Steven J. Rocci Adapter for motion detector
AU2003900627A0 (en) * 2003-02-13 2003-02-27 Aleis Trakit Pty Ltd Security systems
US20040207511A1 (en) * 2003-04-21 2004-10-21 Technology Advancement Group, Inc. System and method for securely activating a mechanism
GB2418516A (en) * 2004-09-23 2006-03-29 Integrated Design Ltd Intelligent passgate
JP4412162B2 (ja) * 2004-12-07 2010-02-10 三菱電機株式会社 利用者認証装置および入退室管理装置
US20060181392A1 (en) * 2005-02-14 2006-08-17 Watson Ronald R Method and apparatus for accessing safe deposit box
ITRM20050463A1 (it) * 2005-09-09 2007-03-10 Cristiana Albergo Sistema di identificazione perfezionato.
US8314715B2 (en) * 2007-09-13 2012-11-20 Lior Werpooler Method and device for a key holder
FR2949268B1 (fr) * 2009-08-20 2012-09-28 Radio Systemes Ingenierie Video Technologies Dispositif de detection d'entree et de reconnaissance de badges transpondeurs, systeme de surveillance le comprenant et procede de surveillance mis en oeuvre par ledit systeme
CN103914899B (zh) * 2013-01-09 2016-08-10 深圳市中联创新自控系统有限公司 报警门禁控制器及其控制系统和方法
CN103247093A (zh) * 2013-03-25 2013-08-14 苏州德鲁克供应链管理有限公司 一种仓库自动门感应软件
JP6663240B2 (ja) * 2016-02-15 2020-03-11 新日本無線株式会社 マルチラインセンサ
CN110415391B (zh) 2018-04-27 2024-03-05 开利公司 使用可佩戴设备的无缝进入控制系统
CN110458982A (zh) 2018-05-07 2019-11-15 开利公司 通往目的地的无缝免提读取器路线

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE860907C (de) * 1950-12-12 1952-12-29 Max Egon Becker Autoradiowerk Anlage zur automatischen OEffnung eines Garagentores
US2774060A (en) * 1953-06-15 1956-12-11 Richard B Thompson Detecting means for stolen goods
DE1822849U (de) * 1959-10-01 1960-12-01 Carl Adolf Dr Schleussner Transportabler behaelter fuer wertvolle gueter, beispielsweise schmuckkoffer, aktentasche od. dgl.
US3168737A (en) * 1962-11-07 1965-02-02 Commerical Factors Ltd Radio controlled lock
US3196440A (en) * 1962-11-07 1965-07-20 Commercial Factors Ltd Radio control system for operating a distant electromechanical transducer door lock utilizing a capacity-sensitive circuit at the distant location and an operator-carried transceiver
US3344629A (en) * 1966-05-02 1967-10-03 Sylvania Electric Prod Electronic lock with inductively coupled tuned key card
US3582931A (en) * 1967-10-18 1971-06-01 Daniel Nawrocki Pilferage-prevention system
US3639906A (en) * 1968-10-14 1972-02-01 Peter R Tritsch Key identification system having key code control
US3713133A (en) * 1971-02-16 1973-01-23 R Nathans Rf and sonic systems for preventing shoplifting of goods and unauthorized removal of capsules affixed thereto for protecting goods
US3732465A (en) * 1971-09-20 1973-05-08 Walton C Electronic sensing and actuator system
JPS5143760B2 (xx) * 1971-09-28 1976-11-24

Also Published As

Publication number Publication date
JPS5047597A (xx) 1975-04-28
NL175557B (nl) 1984-06-18
IL40760A0 (en) 1973-01-30
NL175557C (nl) 1984-11-16
GB1414120A (en) 1975-11-19
CH577723A5 (xx) 1976-07-15
HK29681A (en) 1981-07-10
FR2159362A1 (xx) 1973-06-22
FR2159362B1 (xx) 1980-03-07
ZA727892B (en) 1974-06-26
DE2254637A1 (de) 1973-05-10
HK29581A (en) 1981-07-10
GB1414119A (en) 1975-11-19
AU4857872A (en) 1974-05-09
NL7215051A (xx) 1973-05-10
CA997445A (en) 1976-09-21
ES408555A1 (es) 1976-03-16
SE392651B (sv) 1977-04-04
IT973404B (it) 1974-06-10
US3891980A (en) 1975-06-24
IL40760A (en) 1975-10-15
BE791039A (fr) 1973-05-07

Similar Documents

Publication Publication Date Title
AU472349B2 (en) Security systems
CA959556A (en) Security system
CA954931A (en) Electromagnet-controlling system
CA972048A (en) Vehicle security system
CA971513A (en) Sway-arrest system
CA1016992A (en) Controlled spark-duration system
CA953390A (en) Anti-skid systems
CA981355A (en) Locking system
CA932654A (en) Well-logging system
AU472148B2 (en) Systems
CA956001A (en) Detection systems
CA980445A (en) Anti-shoplifting system
AU464444B2 (en) Skid-control system
CA860527A (en) Terrain-following system
CA876227A (en) Weapon-training systems
AU450129B2 (en) Lock system
CA871365A (en) Window security system
CA860526A (en) Terrain-following system
CA882356A (en) Protection system
AU2775371A (en) Lock system
CA874659A (en) Telemetry systems
CA933656A (en) Money-dispensing and transaction-control systems
CA888398A (en) Solid state touch-tune system
CA975854A (en) Detector systems
CA852078A (en) Security system