D.c. stable semiconductor memory cell

D.c. switch circuit

D.c. system for conductivity measurements

D.c.-fed, regulated direct-current supply system

D.i.s. k.v. tester

Daily programmable thermostat assembly

Dairy production information system

Daisy chain cascading devices

Daisy chaining of device interrupts in a cathode ray tube...

Daisy-chain memory configuration and usage

Damage assessment

Damage evaluation system using optical fibers

Damage resistant bathroom scale construction

Damage-resistant mechanical metronome

Damped high speed tire testing machine

Damped josephson junction memory cell

Damped josephson junction memory cell

Damped pendulum angular position

Damper

Damper adjustment device