CA940834A - Keyboards - Google Patents

Keyboards

Info

Publication number: CA940834A
Authority: CA; Canada
Prior art keywords: keyboards
Prior art date: 1970-08-07
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

CA117,018A

Other versions

CA117018S (en

Inventor

Darrell L. Flory

Edward S. Stork

Dean B. Jackson

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.)

National Cash Register Co

Original Assignee

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.)

1970-08-07

Filing date

1971-06-29

Publication date

1974-01-29

1971-06-29 Application filed by National Cash Register Co filed Critical National Cash Register Co

1974-01-29 Application granted granted Critical

1974-01-29 Publication of CA940834A publication Critical patent/CA940834A/en

Status Expired legal-status Critical Current

Links

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J5/00—Devices or arrangements for controlling character selection
- B41J5/08—Character or syllable selected by means of keys or keyboards of the typewriter type
- B41J5/14—Construction of key levers

CA117,018A 1970-08-07 1971-06-29 Keyboards Expired CA940834A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US6203770A	1970-08-07	1970-08-07

Publications (1)

Publication Number	Publication Date
CA940834A true CA940834A (en)	1974-01-29

Family

ID=22039816

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA117,018A Expired CA940834A (en)	1970-08-07	1971-06-29	Keyboards

Country Status (10)

Country	Link
US (1)	US3715023A (en)
JP (1)	JPS5119373B1 (en)
AU (1)	AU448829B2 (en)
BE (1)	BE770814A (en)
CA (1)	CA940834A (en)
CH (1)	CH523545A (en)
DE (1)	DE2138135B2 (en)
FR (1)	FR2103833A5 (en)
GB (1)	GB1298546A (en)
ZA (1)	ZA714929B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4071719A (en) *	1976-07-22	1978-01-31	Illinois Tool Works Inc.	Keyboard switch assembly having actuator interlocking keyboard shift and shift lock and release mechanism
GB1591986A (en) *	1976-09-21	1981-07-01	Dobson Park Ind	Typewriters
US4295012A (en) *	1980-02-04	1981-10-13	Illinois Tool Works Inc.	Secretarial shift mechanism for an electric keyboard

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3292761A (en) *	1965-11-04	1966-12-20	Navigation Computer Corp	Typewriter key lever and mount therefor

1970
- 1970-08-07 US US00062037A patent/US3715023A/en not_active Expired - Lifetime
1971
- 1971-06-29 CA CA117,018A patent/CA940834A/en not_active Expired
- 1971-07-20 GB GB33998/71A patent/GB1298546A/en not_active Expired
- 1971-07-23 ZA ZA714929A patent/ZA714929B/en unknown
- 1971-07-30 JP JP46057463A patent/JPS5119373B1/ja active Pending
- 1971-07-30 DE DE2138135A patent/DE2138135B2/en not_active Withdrawn
- 1971-08-02 FR FR7128199A patent/FR2103833A5/fr not_active Expired
- 1971-08-02 BE BE770814A patent/BE770814A/en unknown
- 1971-08-02 AU AU31880/71A patent/AU448829B2/en not_active Expired
- 1971-08-06 CH CH1159071A patent/CH523545A/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
DE2138135B2 (en)	1978-10-26
CH523545A (en)	1972-05-31
US3715023A (en)	1973-02-06
GB1298546A (en)	1972-12-06
AU448829B2 (en)	1974-05-30
BE770814A (en)	1971-12-16
AU3188071A (en)	1973-02-08
ZA714929B (en)	1972-04-26
JPS5119373B1 (en)	1976-06-17
FR2103833A5 (en)	1972-04-14
DE2138135A1 (en)	1972-02-10

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