Lloyd L. Langsdorf

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Streamwood, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Arrangement and method of achieving a dial pulse muting function in...
- Patent number 4,007,337
- Issue date Feb 8, 1977
- GTE Automatic Electric Laboratories Incorporated
- Lloyd L. Langsdorf
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Power fail monitor and transfer circuit
- Patent number 3,985,974
- Issue date Oct 12, 1976
- GTE Automatic Electric Laboratories Incorporated
- Julius Jusinskas
- H04 - ELECTRIC COMMUNICATION TECHNIQUE