Composite manhole cover with embedded detection

A composite manhole cover includes a body made of a polymer adapted to accommodate an embedded magnetic material embedded as well as function enhancing electronics.

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Bibliographische Detailangaben
1. Verfasser:	Nunnery, William C
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS CALCULATING CHEMISTRY COMPOSITIONS BASED THEREON COMPUTING COUNTING EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HANDLING RECORD CARRIERS HYDRAULIC ENGINEERING MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PHYSICS PRESENTATION OF DATA RECOGNITION OF DATA RECORD CARRIERS SOIL SHIFTING TARIFF METERING APPARATUS TESTING THEIR PREPARATION OR CHEMICAL WORKING-UP UNDERGROUND OR UNDERWATER STRUCTURES USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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