-
-
Solar engine
-
Patent number 4,326,381
-
Issue date Apr 27, 1982
-
The United States of America as represented by the administrator of the Natio...
-
Ronald N. Jensen
-
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
-
Anti-moment gyro for windmill
-
Patent number 4,302,152
-
Issue date Nov 24, 1981
-
Ronald N. Jensen
-
F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
-
-
Solar heating system
-
Patent number 4,062,347
-
Issue date Dec 13, 1977
-
The United States of America as represented by the administrator of the Natio...
-
Ronald N. Jensen
-
F24 - HEATING RANGES VENTILATING