CA923434A - Key-entry system - Google Patents

Key-entry system

Info

Publication number
CA923434A
CA923434A CA145974A CA145974A CA923434A CA 923434 A CA923434 A CA 923434A CA 145974 A CA145974 A CA 145974A CA 145974 A CA145974 A CA 145974A CA 923434 A CA923434 A CA 923434A
Authority
CA
Canada
Prior art keywords
key
entry system
entry
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
CA145974A
Other versions
CA145974S (en
Inventor
J. Igel John
D. Schettl Myron
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 CA086710A external-priority patent/CA922639A/en
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Priority to CA145974A priority Critical patent/CA923434A/en
Application granted granted Critical
Publication of CA923434A publication Critical patent/CA923434A/en
Expired legal-status Critical Current

Links

CA145974A 1969-07-03 1972-06-29 Key-entry system Expired CA923434A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA145974A CA923434A (en) 1969-07-03 1972-06-29 Key-entry system

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US83896969A 1969-07-03 1969-07-03
CA086710A CA922639A (en) 1969-07-03 1970-06-29 Key-entry system
CA145974A CA923434A (en) 1969-07-03 1972-06-29 Key-entry system

Publications (1)

Publication Number Publication Date
CA923434A true CA923434A (en) 1973-03-27

Family

ID=25666460

Family Applications (3)

Application Number Title Priority Date Filing Date
CA145975A Expired CA923435A (en) 1969-07-03 1972-06-29 Key-entry system
CA145974A Expired CA923434A (en) 1969-07-03 1972-06-29 Key-entry system
CA145976A Expired CA923436A (en) 1969-07-03 1972-06-29 Key-entry system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA145975A Expired CA923435A (en) 1969-07-03 1972-06-29 Key-entry system

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA145976A Expired CA923436A (en) 1969-07-03 1972-06-29 Key-entry system

Country Status (1)

Country Link
CA (3) CA923435A (en)

Also Published As

Publication number Publication date
CA923435A (en) 1973-03-27
CA923436A (en) 1973-03-27

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