GB1366732A - - Google Patents

Info

Publication number
GB1366732A
GB1366732A GB3969372A GB3969372A GB1366732A GB 1366732 A GB1366732 A GB 1366732A GB 3969372 A GB3969372 A GB 3969372A GB 3969372 A GB3969372 A GB 3969372A GB 1366732 A GB1366732 A GB 1366732A
Authority
GB
United Kingdom
Prior art keywords
key
detent
keys
lock cylinder
depressed
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
GB3969372A
Other languages
English (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.)
NCR Voyix Corp
National Cash Register Co
Original Assignee
NCR Corp
National Cash Register Co
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 NCR Corp, National Cash Register Co filed Critical NCR Corp
Publication of GB1366732A publication Critical patent/GB1366732A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
    • G06C7/00—Input mechanisms
    • G06C7/02—Keyboards
    • G06C7/04—Interlocking devices, e.g. between keys

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Cash Registers Or Receiving Machines (AREA)
  • Lock And Its Accessories (AREA)
GB3969372A 1971-09-01 1972-08-25 Expired GB1366732A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17700571A 1971-09-01 1971-09-01

Publications (1)

Publication Number Publication Date
GB1366732A true GB1366732A (enrdf_load_stackoverflow) 1974-09-11

Family

ID=22646789

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3969372A Expired GB1366732A (enrdf_load_stackoverflow) 1971-09-01 1972-08-25

Country Status (4)

Country Link
US (1) US3703987A (enrdf_load_stackoverflow)
JP (1) JPS4833895A (enrdf_load_stackoverflow)
CA (1) CA950425A (enrdf_load_stackoverflow)
GB (1) GB1366732A (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS548049B1 (enrdf_load_stackoverflow) * 1971-03-12 1979-04-12
JPS5864537A (ja) * 1981-10-13 1983-04-16 Casio Comput Co Ltd 電子レジスタ
US6768428B1 (en) 2002-03-27 2004-07-27 Blaine C. Readler Computer keyboard lock
US8522309B2 (en) * 2007-01-22 2013-08-27 Simon Yoffe Security switch
US8090961B2 (en) * 2007-01-22 2012-01-03 Simon Yoffe Security switch
WO2020006477A1 (en) 2018-06-29 2020-01-02 Purism Electronic kill and physical cover switch

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2210065A (en) * 1940-08-06 Cash register
US2280958A (en) * 1942-04-28 Cash register
US3464623A (en) * 1964-08-11 1969-09-02 Sperry Rand Corp Control mechanism for calculating machine
US3516604A (en) * 1968-01-10 1970-06-23 Ibm Sequential keyboard interlock

Also Published As

Publication number Publication date
JPS4833895A (enrdf_load_stackoverflow) 1973-05-14
US3703987A (en) 1972-11-28
CA950425A (en) 1974-07-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee