Apparatus with one or more particular functions for connection to the British Telecommunications public switched telephone network. Apparatus with auto-calling, auto-answering and auto-clearing facilities. Specification for auto-calling facilities.

UNGÜLTIG herausgegeben am 15.3.1985

Apparatus with one or more particular functions for connection to the British Telecommunications public switched telephone network. Apparatus with auto-calling, auto-answering and auto-clearing facilities. Specification for auto-answering and auto-clearing facilities.

UNGÜLTIG herausgegeben am 23.12.1987

Apparatus with one or more particular functions for connection to certain public switched telephone networks. Specification for series connected apparatus. Apparatus having maximum allowable impairments.

UNGÜLTIG herausgegeben am 31.12.1986

Apparatus with one or more particular functions for connection to certain public switched telephone networks. Specification for series connected apparatus. Apparatus having less than maximum allowable impairments.

UNGÜLTIG herausgegeben am 28.2.1989

Apparatus with one or more particular functions for connection to public switched telephone networks run by certain public telecommunications operators. Specification for apparatus with call barring facilities.

UNGÜLTIG herausgegeben am 30.11.1988

Assembly tools for screws and nuts. Hand torque tools. Requirements and test methods for design conformance testing, quality conformance testing and recalibration procedure.

UNGÜLTIG herausgegeben am 11.4.2003

Protective glass for welding and other industrial operations.

UNGÜLTIG herausgegeben am 8.6.1936

Protective filters for welding and other industrial operations..

UNGÜLTIG herausgegeben am 12.9.1947

Specification for filters for use during welding and similar industrial operations.

UNGÜLTIG herausgegeben am 28.2.1977

Specification for filters, cover lenses and backing lenses for use during welding and similar operations.

UNGÜLTIG herausgegeben am 30.6.1989