NL149615B - KEYBOARD. - Google Patents

KEYBOARD.

Info

Publication number: NL149615B
Authority: NL; Netherlands
Prior art keywords: keyboard
Prior art date: 1966-01-31

Application number

NL676700482A

Other languages

Dutch (nl)

Other versions

NL6700482A (en

Original Assignee

Wirth

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.)

1966-01-31

Filing date

1967-01-12

Publication date

1976-05-17

1967-01-12 Application filed by Wirth filed Critical Wirth

1967-08-01 Publication of NL6700482A publication Critical patent/NL6700482A/xx

1976-05-17 Publication of NL149615B publication Critical patent/NL149615B/en

Classifications

- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
- G05G5/06—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in one or a limited number of definite positions only
- G05G5/08—Interlocking of members, e.g. locking member in a particular position before or during the movement of another member
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
- G06C7/00—Input mechanisms
- G06C7/02—Keyboards

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Automation & Control Theory (AREA)
Computer Hardware Design (AREA)
Computing Systems (AREA)
Theoretical Computer Science (AREA)
Push-Button Switches (AREA)

NL676700482A 1966-01-31 1967-01-12 KEYBOARD. NL149615B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH140666A CH450746A (en)	1966-01-31	1966-01-31	Keyboard, in particular for scales

Publications (2)

Publication Number	Publication Date
NL6700482A NL6700482A (en)	1967-08-01
NL149615B true NL149615B (en)	1976-05-17

Family

ID=4209685

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL676700482A NL149615B (en)	1966-01-31	1967-01-12	KEYBOARD.

Country Status (4)

Country	Link
US (1)	US3356296A (en)
AT (1)	AT265690B (en)
CH (1)	CH450746A (en)
NL (1)	NL149615B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3574335A (en) *	1969-11-26	1971-04-13	Olympia Werke Ag	Keyboard with interconnected keys
US3678255A (en) *	1971-06-18	1972-07-18	Cherry Electrical Prod	Mechanical key lock-in

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1534938A (en) *		1925-04-21		Keyboard of calculating machines
US2451090A (en) *		1948-10-12		Key locking mechanism
US2142862A (en) *	1933-11-18	1939-01-03	Hall Welter Co Inc	Check writer
US3024988A (en) *	1959-07-01	1962-03-13	Monroe Calculating Machine	Keyboard mechanism

1966
- 1966-01-31 CH CH140666A patent/CH450746A/en unknown
- 1966-12-20 US US603309A patent/US3356296A/en not_active Expired - Lifetime
- 1966-12-23 AT AT1184866A patent/AT265690B/en active
1967
- 1967-01-12 NL NL676700482A patent/NL149615B/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
US3356296A (en)	1967-12-05
DE1572987B2 (en)	1972-06-15
AT265690B (en)	1968-10-25
CH450746A (en)	1968-01-31
DE1572987A1 (en)	1971-11-04
NL6700482A (en)	1967-08-01

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Legal Events

Date	Code	Title	Description
1985-05-17	V1	Lapsed because of non-payment of the annual fee
1987-01-31	NL80	Abbreviated name of patent owner mentioned of already nullified patent	Owner name: WIRTH