BS 2733:1956
Specification. Intrinsically safe magneto-call telephones primarily for use in coal mines
BSI Group , 03/14/1956
$132.00
$264.16
Telephone ringing and speech circuits. Magneto-generator characteristics, magneto-operated bell. Coupling unit.
Product Information
Published:
03/14/1956
ISBN:
0580029034
Language:
English
Note:
This product is unavailable in Ukraine, Russia, Belarus
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