Improvements in or relating to loudspeaking telephone systems having several main stations

Keywords	Philips Eindhoven Netherlands Queen Engineer Technician Patent
Ministry/ Department/ Residency	PATENTS AND DISGNS KOLKATA
Branch	Kolkata
From Year / Date (YYYY-MM-DD)	1961
To Year / Date (YYYY-MM-DD)	1961
Identifier	NAIBHF00004371
File No./Reference No./Sheet No./Folio No.	77028
Location	BBSR-R1
File Size	26.8 MB
Pages	15
Collection	Public Records
Language	English
Bundle Barcode	NAIBHB00000233
File Barcode	NAIBHF00004371
QC Certificate No.	QC_20240626BH
Bundle No.	41