CA2000978C - Annuaire telephonique a volets
- Google Patents
Annuaire telephonique a volets
Info
Publication number
CA2000978C
CA2000978CCA002000978ACA2000978ACA2000978CCA 2000978 CCA2000978 CCA 2000978CCA 002000978 ACA002000978 ACA 002000978ACA 2000978 ACA2000978 ACA 2000978ACA 2000978 CCA2000978 CCA 2000978C
Authority
CA
Canada
Prior art keywords
shutter mechanism
physical
physical spaces
spaces
buttons
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.)
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.)
Nortel Networks Ltd
Original Assignee
Northern Telecom 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 Northern Telecom LtdfiledCriticalNorthern Telecom Ltd
Priority to CA002000978ApriorityCriticalpatent/CA2000978C/fr
Publication of CA2000978A1publicationCriticalpatent/CA2000978A1/fr
Application grantedgrantedCritical
Publication of CA2000978CpublicationCriticalpatent/CA2000978C/fr
H04M1/00—Substation equipment, e.g. for use by subscribers
H04M1/26—Devices for calling a subscriber
H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
Landscapes
Engineering & Computer Science
(AREA)
Signal Processing
(AREA)
Telephone Set Structure
(AREA)
CA002000978A1989-10-181989-10-18Annuaire telephonique a volets
Expired - Fee RelatedCA2000978C
(fr)