![]() | ![]() | ||
Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login |
Quick search: | Patent number: | Patent Date: |
Patents for Uni-Hydro Inc. | |||||
![]() ![]() ![]() ![]() ![]() ![]() | |||||
Picture | Number | Date | Patentee | Title | |
3,678,792 | Jul. 25, 1972 | F. Dvorak | Metal plate shears | ||
3,899,950 | Aug. 19, 1975 | J. Dvorak | Bar shear | ||
3,945,287 | Mar. 23, 1976 | J. Dvorak | Sheet shear | ||
4,054,075 | Oct. 18, 1977 | J. Dvorak | Shear mechanism | ||
![]() | 4,907,481 | Mar. 13, 1990 | J. Dvorak, C.J. Dvorak | Powered press with manual punch and die alignment capability | |
![]() | 5,170,689 | Dec. 15, 1992 | J. Dvorak | Metal working machine |