Adjustable dip stick guide

Angular depth gauge

Combination relief vent and dipstick apparatus for an oil...

Computerized depth calculator

Connection system for a fluid level measuring device

Depth gauge for a fishing line

Device for measuring the displacement of a swivel of a drilling

Diesel fuel gauge

Dip stick guide, combination dip stick and dip stick holder

Dip stick guide, combination dip stick and dip stick holder

Dipstick assembly

Dipstick guide

Dipstick guide

Dipstick guide apparatus

Dipstick handle

Dipstick light assembly

Dipstick locator and wiper construction for automobiles

Displacement servo gauge

Drop-weight material level indicator

Fishing line length measuring device for fishing reels