Fancy watch
Fault tolerant time synchronization
Fixed-gnomon standard-time sundial
Fixture for securing an electrical connector
Flexible system for sealing control buttons and relaying...
Flight watch with multiple timers and alarms
Floral clock movement
Formed contact spring for electro-mechanical watches
Four dial post - street clocks with a rotating information...
Frequency standard using an atomic stream of optically...
Friction detent to permit setting of digital clock
Fuel burner time control
Fully bi-directional digital time displays
Furnace fan timer