IS 13109 : Part 5 : 1991

IS 13109 : Part 5 : 19911356154
IS 13109 : Part 5 : 1991
Title: electronic equipment/systems for use in coal and metaliferrous mines:Part 5 Requirements for loud hailing telephone systems


Format: Print
Pages: 2
Year: 1991
Publisher: Bureau of Indian Standards
Availability: Out of Stock