GB342733A - Improvements in keyboards for use in telephone or like systems - Google Patents

Improvements in keyboards for use in telephone or like systems

Info

Publication number
GB342733A
GB342733A GB3385229A GB3385229A GB342733A GB 342733 A GB342733 A GB 342733A GB 3385229 A GB3385229 A GB 3385229A GB 3385229 A GB3385229 A GB 3385229A GB 342733 A GB342733 A GB 342733A
Authority
GB
United Kingdom
Prior art keywords
screwed
bar
mounting
telephone
keyboard
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
GB3385229A
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.)
LOIS JOSEPH JEAN SCHREIBER
Original Assignee
LOIS JOSEPH JEAN SCHREIBER
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 to BE371053D priority Critical patent/BE371053A/xx
Application filed by LOIS JOSEPH JEAN SCHREIBER filed Critical LOIS JOSEPH JEAN SCHREIBER
Priority to GB3385229A priority patent/GB342733A/en
Priority to FR712343D priority patent/FR712343A/fr
Publication of GB342733A publication Critical patent/GB342733A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/08—Arrangements to facilitate replacement of a switch, e.g. cartridge housing

Landscapes

  • Telephone Set Structure (AREA)
GB3385229A 1929-11-06 1929-11-06 Improvements in keyboards for use in telephone or like systems Expired GB342733A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE371053D BE371053A (forum.php) 1929-11-06
GB3385229A GB342733A (en) 1929-11-06 1929-11-06 Improvements in keyboards for use in telephone or like systems
FR712343D FR712343A (fr) 1929-11-06 1930-06-14 Perfectionnements aux tablettes à clés pour systèmes téléphoniques ou autres systèmes analogues

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3385229A GB342733A (en) 1929-11-06 1929-11-06 Improvements in keyboards for use in telephone or like systems

Publications (1)

Publication Number Publication Date
GB342733A true GB342733A (en) 1931-02-06

Family

ID=10358284

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3385229A Expired GB342733A (en) 1929-11-06 1929-11-06 Improvements in keyboards for use in telephone or like systems

Country Status (3)

Country Link
BE (1) BE371053A (forum.php)
FR (1) FR712343A (forum.php)
GB (1) GB342733A (forum.php)

Also Published As

Publication number Publication date
BE371053A (forum.php)
FR712343A (fr) 1931-10-15

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