368 / | HD | HOROLOGY: TIME MEASURING SYSTEMS OR DEVICES |
89 | DF | TIME INTERVAL {6} |
101 | .~ Mechanical stop time type {5} | |
102 | DF | .~.~> With plural second hands (e.g., split-seconds) |
103 | DF | .~.~> With pivoted coupler |
104 | DF | .~.~> With sliding coupler |
105 | DF | .~.~> With positive stop |
106 | DF | .~.~> With reset means |