William L. Abler

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Chicago, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Single wheel celestial navigator
- Patent number 4,462,684
- Issue date Jul 31, 1984
- William L. Abler
- G01 - MEASURING TESTING
Information Patent Grant
Celestial navigator
- Patent number 4,449,817
- Issue date May 22, 1984
- William L. Abler
- G01 - MEASURING TESTING
Information Patent Grant
Bi-periscopic instrument for use in determining terrestrial positio...
- Patent number 4,294,541
- Issue date Oct 13, 1981
- William L. Abler
- G01 - MEASURING TESTING