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Wandel and Golterman GmbH and Co

Wandel and

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US3909716A	Digital frequency meter	Expired / Lapsed	1973-11-26	1975-09-30	10	Details
US3696293A	Pulse-frequency tester	Expired / Lapsed	1970-09-21	1972-10-03	10	Details
US3611117A	Voltage stabilizer with reversible binary counter for alter…	Expired / Lapsed	1969-11-20	1971-10-05	16	Details
US3486112A	System for giving calibrated amplitude indications	Expired / Lapsed	1967-12-26	1969-12-23	0	Details