Improvements in or Relating to Circuit Arrangements for Loudspeaking Telephone Systems

Keywords	Telephone Amplifier Transistor Electro-acoustic Switching Capacitor Philips
Ministry/ Department/ Residency	PATENTS AND DISGNS KOLKATA
Branch	Kolkata
From Year / Date (YYYY-MM-DD)	1961
To Year / Date (YYYY-MM-DD)	1961
Source Organization	NA
Identifier	NAIBHF00002871
File No./Reference No./Sheet No./Folio No.	75434
Location	BBSR-R1
Part No.	NA
File Size	25.4 MB
Pages	14
Collection	Public Records
Call Number	NA
Publisher	NA
Subject	NA
Creator	NA
Accession Number	NA
Series	NA
Year of Publication	NA
Language	English
Bundle Barcode	NAIBHB00000201
Location Code	NA
File Barcode	NAIBHF00002871
QC Certificate No.	QC_20240622BH
Bundle No.	9