G - Physics – 01 – S
Patent
G - Physics
01
S
343/37
G01S 13/42 (2006.01) G01S 5/12 (2006.01)
Patent
CA 1127278
METHOD AND APPARATUS FOR LOCATING POSITION IN A WATERWAY ABSTRACT An electromagnetic energy pulse-echo system combined with a data processing unit and a memory storing the locations of a number of fixed echo reflectors relative to a waterway so that the pulse-echo system operating from a boat can register the echo reflectors and positions in the water- way can be calculated by the data processing unit.
306898
Englander Irvin S.
Jepsky Joseph
Williams James E.
Associated Controls & Communications Inc.
Macrae & Co.
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