-
Hydraulic concrete mixer
-
Patent number 7,048,430
-
Issue date May 23, 2006
-
David L. Birmingham, Sr.
-
B28 - WORKING CEMENT, CLAY, OR STONE
-
-
-
Mixer
-
Patent number 5,190,372
-
Issue date Mar 2, 1993
-
Lescha Maschinenfabrik GmbH & Co. KG
-
Peter Kasberger
-
B28 - WORKING CEMENT, CLAY, OR STONE
-
2668695
-
Patent number 2,668,695
-
Issue date Feb 9, 1954
-
B28 - WORKING CEMENT, CLAY, OR STONE
-
2507077
-
Patent number 2,507,077
-
Issue date May 9, 1950
-
B28 - WORKING CEMENT, CLAY, OR STONE
-
2450993
-
Patent number 2,450,993
-
Issue date Oct 12, 1948
-
B28 - WORKING CEMENT, CLAY, OR STONE
-
1187959
-
Patent number 1,187,959
-
Issue date Jun 20, 1916
-
B28 - WORKING CEMENT, CLAY, OR STONE