Liquid level indicating device for movably mounted dispenser tan
Liquid level sensor and alarm system
Means for protecting underground tanks from damage by dipsticks
Mechanical fluid indicator
Oil level detector
Oil level indicator
Oil spill prevention apparatus
Remote indicating dip stick
Reservoir with integrally formed window and method of making sam
Reservoirs for liquids
Safety sight
Sewer backup indicator
Visual fluid level indicator
Visual indicator
Water gauge and method of use therefor