Albert K. Langdon

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Rochester, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Watthour meter socket adapter with lockable terminal cover and seal...
- Patent number 5,207,595
- Issue date May 4, 1993
- Ekstrom Industries, Inc.
- Robert O. Learmont
- G01 - MEASURING TESTING
Information Patent Grant
Watthour meter socket adapter with interface connection
- Patent number 4,977,482
- Issue date Dec 11, 1990
- Ekstrom Industries, Inc.
- Albert K. Langdon
- G01 - MEASURING TESTING
Information Patent Grant
Electric meter socket sealing ring
- Patent number 4,934,747
- Issue date Jun 19, 1990
- Ekstron Industries, Inc.
- Albert K. Langdon
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Electric meter socket repair kit and template for use therewith
- Patent number 4,622,753
- Issue date Nov 18, 1986
- Ekstrom Industries
- David W. Jones
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER