-
-
-
-
-
-
-
-
-
-
Automatic stone cutter
-
Patent number 4,520,880
-
Issue date Jun 4, 1985
-
Yoshitaka Saito
-
B28 - WORKING CEMENT, CLAY, OR STONE
-
-
-
-
-
-
3348482
-
Patent number 3,348,482
-
Issue date Oct 24, 1967
-
E21 - EARTH DRILLING MINING
-
3321032
-
Patent number 3,321,032
-
Issue date May 23, 1967
-
B28 - WORKING CEMENT, CLAY, OR STONE
-
3041053
-
Patent number 3,041,053
-
Issue date Jun 26, 1962
-
E21 - EARTH DRILLING MINING
-
2520320
-
Patent number 2,520,320
-
Issue date Aug 29, 1950
-
B28 - WORKING CEMENT, CLAY, OR STONE
-
2263506
-
Patent number 2,263,506
-
Issue date Nov 18, 1941
-
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
-
1820366
-
Patent number 1,820,366
-
Issue date Aug 25, 1931
-
E21 - EARTH DRILLING MINING
-
1753804
-
Patent number 1,753,804
-
Issue date Apr 8, 1930
-
E21 - EARTH DRILLING MINING
-
1524371
-
Patent number 1,524,371
-
Issue date Jan 27, 1925
-
E21 - EARTH DRILLING MINING
-
1509173
-
Patent number 1,509,173
-
Issue date Sep 23, 1924
-
E21 - EARTH DRILLING MINING