| Patents for Grand Specialties Co. |
Patents 1 -
15
of 24
      |
| Number | Date | Patentee | Title | Type |
| 1,473,833 | Nov. 13, 1923 | M.J. Sasgen | Doorstop | door and window hardware |
| 1,473,834 | Nov. 13, 1923 | M.J. Sasgen | Doorstop | door and window hardware |
| 1,656,394 | Jan. 17, 1928 | M.J. Sasgen | Doorstop | door and window hardware |
| 1,687,517 | Oct. 16, 1928 | M.J. Sasgen | Doorstop | door and window hardware |
| 1,876,173 | Sep. 06, 1932 | A.M. Sasgen | Adjustable doorstop | door and window hardware |
| 2,012,731 | Aug. 27, 1935 | M.J. Sasgen | Overhead door holder | door and window hardware |
| 2,374,899 | May 01, 1945 | A.M. Sasgen | Clamp | C clamps |
| 2,379,992 | Jul. 10, 1945 | A.M. Sasgen | Work supporting and finishing apparatus | tool making |
| D143,096 | Dec. 04, 1945 | A.M. Sasgen | Design for a C-clamp | hand screws |
| 2,445,188 | Jul. 13, 1948 | A.M. Sasgen | Quick-clamping vise | bench vises |
| 2,450,303 | Sep. 28, 1948 | A.M. Sasgen | Clamping device of the vise type | bench vises |
| 2,461,687 | Feb. 15, 1949 | F.P. Hopfeld | Welder's clamp | C clamps |
| GB-631,281 | Oct. 31, 1949 | A.M. Sasgen, F.P. Hopfeld | Improvements in or relating to vises | bench vises |
| 2,490,923 | Dec. 13, 1949 | A.M. Sasgen | Quick action C-clamp | C clamps |
| 2,546,906 | Mar. 27, 1951 | A.M. Sasgen, F.P. Hopfeld | Screw-actuated vise having releasable nut for quickly opening or closing the jaws | bench vises |
