GB8908917D0 - Telecommunications access control device - Google Patents

Telecommunications access control device

Info

Publication number
GB8908917D0
GB8908917D0 GB898908917A GB8908917A GB8908917D0 GB 8908917 D0 GB8908917 D0 GB 8908917D0 GB 898908917 A GB898908917 A GB 898908917A GB 8908917 A GB8908917 A GB 8908917A GB 8908917 D0 GB8908917 D0 GB 8908917D0
Authority
GB
United Kingdom
Prior art keywords
control device
access control
telecommunications access
telecommunications
control
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.)
Pending
Application number
GB898908917A
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.)
TREANOR KEITH A
Original Assignee
TREANOR KEITH A
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 TREANOR KEITH A filed Critical TREANOR KEITH A
Priority to GB898908917A priority Critical patent/GB8908917D0/en
Publication of GB8908917D0 publication Critical patent/GB8908917D0/en
Priority to GB9008937A priority patent/GB2231240B/en
Pending legal-status Critical Current

Links

GB898908917A 1989-04-20 1989-04-20 Telecommunications access control device Pending GB8908917D0 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB898908917A GB8908917D0 (en) 1989-04-20 1989-04-20 Telecommunications access control device
GB9008937A GB2231240B (en) 1989-04-20 1990-04-20 Telecommunications access control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898908917A GB8908917D0 (en) 1989-04-20 1989-04-20 Telecommunications access control device

Publications (1)

Publication Number Publication Date
GB8908917D0 true GB8908917D0 (en) 1989-06-07

Family

ID=10655344

Family Applications (2)

Application Number Title Priority Date Filing Date
GB898908917A Pending GB8908917D0 (en) 1989-04-20 1989-04-20 Telecommunications access control device
GB9008937A Expired - Fee Related GB2231240B (en) 1989-04-20 1990-04-20 Telecommunications access control device

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB9008937A Expired - Fee Related GB2231240B (en) 1989-04-20 1990-04-20 Telecommunications access control device

Country Status (1)

Country Link
GB (2) GB8908917D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5938767A (en) * 1996-08-19 1999-08-17 Horn; Douglas Electronic information lockout system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8701723D0 (en) * 1987-01-27 1987-03-04 Rainer M G Call barring apparatus
GB2211695A (en) * 1987-10-27 1989-07-05 Gina Parmar Security device for a telephone
GB2219444B (en) * 1988-04-09 1992-04-08 Rathdown Ind Ltd A lockable telephone extension plug

Also Published As

Publication number Publication date
GB2231240A (en) 1990-11-07
GB2231240B (en) 1993-12-08
GB9008937D0 (en) 1990-06-20

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