One piece zif connector

One touch face gage for vehicle wheels

One-man field survey instrument

One-piece environmental removable contact connector

Open blade rear sight for pistol, rifle or shotgun

Open circuit leveling measuring system

Open sight addition for a telescopic gun sight

Open sight addition for a telescopic gun sight

Operating mechanism for a plugboard system

Ophthalmic device for measuring vertex distance and pantoscopic

Ophthalmic guide for multi-focal spectacles

Opposed edge slotted terminal electrical connector

Opposed type fulcrum member of lever detector

Optical aiming device

Optical and electrical conduit termination means for circuit boa

Optical angle and torque sensor

Optical angle sensor

Optical axis adjusting device for use in a laser ruler

Optical calibrating apparatus for emitting datum laser line

Optical calibration plate and the assembling method for the...