More on snooze alarms...
What I didn't do was take the next logical step in the snooz alarm debate which seems so obvious now.  The alarm clock's gears were standardized and the same in every alarm clock of the period.  The snooze gear was introduced into the mix and its teeth had to mesh with the pre-existing time-set gear's teeth.  Given this, adding one more tooth, would have increased the time to over ten minutes.  I'm sure the engineers at Telechron didn't want angry letters from folks who were allowed to snooz for MORE THAN TEN minutes and went with the nine teeth instead of ten.  This would guarantee at least nine but not more than ten minutes of snoozing.

Best wishes to the Teeming Millions,

Pappy

Explanation of the pictures: (click the links to see them)

Snoozmovie.mpg   Short film showing the snooze mechanism at work.

Arm.jpg  blue arrow shows buzzer arm that makes all the noise.
              red arrow shows prevent arm that extends from the snooz gear to buy you some more
                                sack time

Timing.jpg  turquoise arrow shows time-set gear
                 yellow arrow show minute gear (separated from time-set gear but they mesh in
                                       working clock)
                  red arrow shows snooze gear with 9 teeth.  Once the time-set gear passes the 9th
                                  tooth, the snooze gear swings up and the buzzer is allowed to buzz away.