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Automatic Telephone Exchange Circuit

Keywords	Telephone Exchange Gating Means Potential Circuit DePENNING
Ministry/ Department/ Residency	PATENTS AND DISGNS KOLKATA
Branch	Kolkata
From Year / Date (YYYY-MM-DD)	1963
To Year / Date (YYYY-MM-DD)	1963
Source Organization	NA
Identifier	NAIBHF00008106
File No./Reference No./Sheet No./Folio No.	86361
Location	BBSR-R1
Part No.	NA
File Size	27.6 MB
Pages	17
Call Number	NA
Publisher	NA
Subject	NA
Creator	NA
Accession Number	NA
Series	NA
Year of Publication	NA
Language	English
Bundle Barcode	NAIBHB00003011
Location Code	NA
File Barcode	NAIBHF00008106
QC Certificate No.	QC_20240705BH
Bundle No.	#N/A

- Switch Circuit Arrangement for Automatic Telephone...
- Department: PATENTS AND DESIGNS KOLKATA
- Branch: Kolkata
- Year / Date: 1963
- Automatic telephone exchange apparatus.
- Department: PATENTS AND DISGNS KOLKATA
- Branch: Kolkata
- Year / Date: 1963
- Correction system for electrical circuits or equip...
- Department: PATENTS AND DISGNS KOLKATA
- Branch: Kolkata
- Year / Date: 1963
- Patent Application - Switching Gear for the Remote...
- Department: PATENTS AND DISGNS KOLKATA
- Branch: Kolkata
- Year / Date: 1962
- Telephones etc - telephone exchange etc - India ex...
- Department: PATENTS AND DISGNS KOLKATA
- Branch: Kolkata
- Year / Date: 1962
- Telephone and Electronic Circuit Systems
- Department: PATENTS AND DISGNS KOLKATA
- Branch: Kolkata
- Year / Date: 1963
- Automatic Telecommunication Exchange System
- Department: PATENTS AND DISGNS KOLKATA
- Branch: Kolkata
- Year / Date: 1963
- Register circuit for automatic telephone exchanges
- Department: PATENTS AND DISGNS KOLKATA
- Branch: Kolkata
- Year / Date: 1961
- Patent Application for 'Lock Out Circuit for Autom...
- Department: PATENTS AND DISGNS KOLKATA
- Branch: Kolkata
- Year / Date: 1961
- Link control circuit for automatic telephone excha...
- Department: PATENTS AND DISGNS KOLKATA
- Branch: Kolkata
- Year / Date: 1961