| Patents for John O. Berg |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| FR-482,422 | Mar. 20, 1917 | J.O. Berg | Tool for treating stone, concrete and other materials | handheld power tools |
| 1,223,359 | Apr. 24, 1917 | J.O. Berg | Tool for treating stone, concrete and other materials | handheld power tools |
| GB-106,701 | Jun. 07, 1917 | J.O. Berg | Tool for treating stone, concrete and other materials | handheld power tools |
| 1,230,842 | Jun. 26, 1917 | J.O. Berg | Tool for treating stone, concrete and other materials | handheld power tools |
| RE14,392 | Nov. 13, 1917 | J.O. Berg | Tool for treating stone, concrete and other material | handheld power tools |
