Shock protection of watches; definition, requirements, testing
€34.30
Antimagnetic properties of watches; definition, requirements, testing
Balance-screws for watches and clocks
Balance studs for watches and clocks; without head
Gold alloy coverings on watch cases; requirements, testing and marking
€48.79
Label for watches and clocks
Label for watches and clocks; example for label-datas
Terminal markings for electric time service apparatus and systems
Timer, clocks having switching mechanism, short-time signalling devices for household electric ranges; characteristics of performance, tests
€24.39
Timer, clocks having switching mechanism, short-time signalling devices for household electric ranges; characteristics of performance, requirements
Timer, clocks having switching mechanism, short-time signalling devices for household electric ranges; characteristics of performance, definitions
Fastening of clockworks an dials for electric secundary clocks; mounting dimensions
Dials for electric clocks; number dials
Visibility for Electric Clocks
Suspension-points on electrical clocks for rooms
