GB1279655A - Devices for introducing values into a calculating machine - Google Patents

Devices for introducing values into a calculating machine

Info

Publication number
GB1279655A
GB1279655A GB43092/69A GB4309269A GB1279655A GB 1279655 A GB1279655 A GB 1279655A GB 43092/69 A GB43092/69 A GB 43092/69A GB 4309269 A GB4309269 A GB 4309269A GB 1279655 A GB1279655 A GB 1279655A
Authority
GB
United Kingdom
Prior art keywords
registering
key
members
rack
end plate
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
GB43092/69A
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of GB1279655A publication Critical patent/GB1279655A/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
    • G06C7/08—Keyboards with one set of keys for all denominations, e.g. ten-key board

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Transmission Devices (AREA)
GB43092/69A 1968-09-03 1969-08-29 Devices for introducing values into a calculating machine Expired GB1279655A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1320768A CH496993A (fr) 1968-09-03 1968-09-03 Dispositif d'introduction de valeurs dans une machine à calculer, à clavier réduit

Publications (1)

Publication Number Publication Date
GB1279655A true GB1279655A (en) 1972-06-28

Family

ID=4390333

Family Applications (1)

Application Number Title Priority Date Filing Date
GB43092/69A Expired GB1279655A (en) 1968-09-03 1969-08-29 Devices for introducing values into a calculating machine

Country Status (6)

Country Link
US (1) US3598971A (enrdf_load_html_response)
CH (1) CH496993A (enrdf_load_html_response)
DK (1) DK122195B (enrdf_load_html_response)
FR (1) FR2017235A1 (enrdf_load_html_response)
GB (1) GB1279655A (enrdf_load_html_response)
SE (1) SE349411B (enrdf_load_html_response)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2697552A (en) * 1954-12-21 Buzzi
US3152759A (en) * 1964-10-13 Interlocked open keyboards with electric restoring
US2975971A (en) * 1954-11-13 1961-03-21 Oerlikon Buehrle Ag Calculating machine with digit keys and function control keys
US3017463A (en) * 1959-04-10 1962-01-16 Bendix Corp Keyboard apparatus
US3169701A (en) * 1961-01-03 1965-02-16 Sperry Rand Corp Interchangeable key blank and key button combination
US3430226A (en) * 1965-05-05 1969-02-25 Sperry Rand Corp Calculators

Also Published As

Publication number Publication date
US3598971A (en) 1971-08-10
SE349411B (enrdf_load_html_response) 1972-09-25
DE1944145A1 (de) 1970-05-21
DK122195B (da) 1972-01-31
FR2017235A1 (enrdf_load_html_response) 1970-05-22
CH496993A (fr) 1970-09-30
DE1944145B2 (de) 1972-08-24

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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