Deprecated: The each() function is deprecated. This message will be suppressed on further calls in /home/zhenxiangba/zhenxiangba.com/public_html/phproxy-improved-master/index.php on line 456 AU410393B2 - Circuit arrangement for telephone exchange installations, particularly for small private branch exchange installations
- Google Patents
AU410393B2 - Circuit arrangement for telephone exchange installations, particularly for small private branch exchange installations
- Google Patents
Circuit arrangement for telephone exchange installations, particularly for small private branch exchange installations
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.)
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 filedfiledCritical
Application grantedgrantedCritical
Publication of AU410393B2publicationCriticalpatent/AU410393B2/en
Publication of AU350466ApublicationCriticalpatent/AU350466A/en
AU3504/66A1965-04-081966-03-28Circuit arrangement for telephone exchange installations, particularly for small private branch exchange installations
ExpiredAU410393B2
(en)