| Patents for Concrete Surfacing Machinery Co. |
Patents 1 -
9
of 9
      |
| Picture | Number | Date | Patentee | Title |
 | FR-482,422 | Mar. 20, 1917 | J.O. Berg | Tool for treating stone, concrete and other materials |
 | 1,223,359 | Apr. 24, 1917 | J.O. Berg | Tool for treating stone, concrete and other materials |
| | GB-106,701 | Jun. 07, 1917 | J.O. Berg | Tool for treating stone, concrete and other materials |
 | 1,230,842 | Jun. 26, 1917 | J.O. Berg | Tool for treating stone, concrete and other materials |
 | RE14,392 | Nov. 13, 1917 | J.O. Berg | Tool for treating stone, concrete and other material |
 | 1,264,647 | Apr. 30, 1918 | J.E. Hodges | Device for applying stucco |
 | RE14,721 | Sep. 09, 1919 | J.E. Hodges | Device for applying stucco |
 | 1,640,570 | Aug. 30, 1927 | G.E. Hieber | Power hammer |
 | 1,874,220 | Aug. 30, 1932 | F.E. Aurand | Portable surface cleaning tool |
