Double chamber ion source

Double ended compact fluorescent lamp

Double focus x-ray tube

Double focusing mass spectrometers

Double insulated power tools

Double layer electrode coil for a hid lamp and method of...

Double staggered ladder circuit

Double wedge termination device for coupled cavity traveling...

Double-based lamp and socket therefor, and lamp base...

Double-based low-pressure discharge lamp with...

Double-bore capillary-tube gas discharge lamp with an...

Double-ended metal halide arc discharge lamp with...

Double-enveloped lamp having a shield surrounding a...

Double-focusing mass spectrometer apparatus and methods...

Downhole mass spectrometry

Drift chambers

Drive mechanism for an x-ray anti-scatter grid

Driven, headed, and screw-threaded fasteners

Driving a mass spectrometer ion trap or mass filter

Drop-in high intensity discharge lamp assembly and retrofit...