ATE82357T1 - ELECTRONIC KEY. - Google Patents

ELECTRONIC KEY.

Info

Publication number
ATE82357T1
ATE82357T1 AT87305236T AT87305236T ATE82357T1 AT E82357 T1 ATE82357 T1 AT E82357T1 AT 87305236 T AT87305236 T AT 87305236T AT 87305236 T AT87305236 T AT 87305236T AT E82357 T1 ATE82357 T1 AT E82357T1
Authority
AT
Austria
Prior art keywords
electronic key
key
electronic
Prior art date
Application number
AT87305236T
Other languages
German (de)
Inventor
John Edward Vaughan
David Robert Smale
Bernard Patry
John Clive Heaton
Original Assignee
Schlumberger Ind 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
Priority claimed from GB868614621A external-priority patent/GB8614621D0/en
Application filed by Schlumberger Ind Ltd filed Critical Schlumberger Ind Ltd
Priority claimed from EP87305236A external-priority patent/EP0253499B1/en
Application granted granted Critical
Publication of ATE82357T1 publication Critical patent/ATE82357T1/en

Links

AT87305236T 1986-06-16 1987-06-12 ELECTRONIC KEY. ATE82357T1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB868614621A GB8614621D0 (en) 1986-06-16 1986-06-16 Electronic devices
GB868625675A GB8625675D0 (en) 1986-06-16 1986-10-27 Electronic devices
EP87305236A EP0253499B1 (en) 1986-06-16 1987-06-12 Electronic key

Publications (1)

Publication Number Publication Date
ATE82357T1 true ATE82357T1 (en) 1992-11-15

Family

ID=27230444

Family Applications (1)

Application Number Title Priority Date Filing Date
AT87305236T ATE82357T1 (en) 1986-06-16 1987-06-12 ELECTRONIC KEY.

Country Status (1)

Country Link
AT (1) ATE82357T1 (en)

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee