FI (Note)/(Index) list

Descriptions for G04F and notes/indexes are displayed on this screen.

G04F TIME-INTERVAL MEASURING (measuring pulse characteristics G01R, e.g. G01R 29/02; in radar or like systems G01S)[2]

Note(s)
    This subclass covers:[2]
      apparatus for measuring-off predetermined time intervals;apparatus for producing such intervals as timing standards, e.g. metronomes;apparatus for measuring unknown intervals, e.g. precision systems for short-time-interval measurement.

Subclass indexes

MEASURING PREDETERMINED TIME INTERVALS

Producing time standards

5/00

Apparatus: without driving mechanisms; with driving mechanisms

1/00; 3/00

MEASURING UNKNOWN TIME INTERVALS

Mechanically; electromechanically; electrically; otherwise

7/00; 8/00; 10/00; 13/00