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Rapid transit system
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Patent number 4,075,948
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Issue date Feb 28, 1978
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Michael A. Minovitch
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B60 - VEHICLES IN GENERAL
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Rapid transit system
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Patent number 3,954,064
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Issue date May 4, 1976
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Gravity Transit Company
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Michael A. Minovitch
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B60 - VEHICLES IN GENERAL
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3913493
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Patent number 3,913,493
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Issue date Oct 21, 1975
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B60 - VEHICLES IN GENERAL
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3914670
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Patent number 3,914,670
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Issue date Oct 21, 1975
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B60 - VEHICLES IN GENERAL
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3912992
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Patent number 3,912,992
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Issue date Oct 14, 1975
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B60 - VEHICLES IN GENERAL
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3904898
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Patent number 3,904,898
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Issue date Sep 9, 1975
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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3904899
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Patent number 3,904,899
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Issue date Sep 9, 1975
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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3890906
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Patent number 3,890,906
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Issue date Jun 24, 1975
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B60 - VEHICLES IN GENERAL
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3884154
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Patent number 3,884,154
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Issue date May 20, 1975
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B60 - VEHICLES IN GENERAL
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3871301
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Patent number 3,871,301
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Issue date Mar 18, 1975
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H01 - BASIC ELECTRIC ELEMENTS
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3872357
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Patent number 3,872,357
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Issue date Mar 18, 1975
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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3867886
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Patent number 3,867,886
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Issue date Feb 25, 1975
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B60 - VEHICLES IN GENERAL
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3858522
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Patent number 3,858,522
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Issue date Jan 7, 1975
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B60 - VEHICLES IN GENERAL