DE2547761A1
1975-10-24
Electronic coin tester of high stability - has coin guide, oscillator and evaluator connected to one or more measuring coils
DE2527718A1
1975-06-21
Electronic coin tester using detector coils - has two sets of windings each with a primary and two secondaries
DE2527805A1
1975-06-21
Electronic coin tester using pick-up coils - has symmetrical primary windings and signal filtering system
DE2511761A1
1975-03-18
Electronic coin tester with two-way channel - has probe to operate magnetic flap switch and has associated coin counting device
DE2510878A1
1975-03-13
Electronic coin tester with logic circuit - has two or more probes, test circuits switches consecutively excited by coin
DE2510914A1
1975-03-13
Electronic coin tester with two or more probes - has test windings and switches consecutively operated by coin
DE2510661A1
1975-03-12
Electronic unit tester for sorting - has retriggerable time setting device to be available for the next coin
DE2425803A1
1974-05-28
Electronic coin tester - has two probes designed as differential transformer and operating at different frequencies
