-
Rotary bellows
-
Patent number 5,033,270
-
Issue date Jul 23, 1991
-
The United States of America as represented by the Secretary of the Navy
-
Lee R. Hardt
-
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
-
3858392
-
Patent number 3,858,392
-
Issue date Jan 7, 1975
-
F42 - AMMUNITION BLASTING
-
2979896
-
Patent number 2,979,896
-
Issue date Apr 18, 1961
-
F42 - AMMUNITION BLASTING
-
2730093
-
Patent number 2,730,093
-
Issue date Jan 10, 1956
-
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
-
1877936
-
Patent number 1,877,936
-
Issue date Sep 20, 1932
-
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
-
1791049
-
Patent number 1,791,049
-
Issue date Feb 3, 1931
-
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS