Patents for Emil Ritz Jr. |
Patents 1 -
9
of 9
      |
Number | Date | Patentee | Title | Type |
1,241,659 | Oct. 02, 1917 | E. Ritz, Jr. | Electric portable grinder | handheld grinders |
1,259,130 | Mar. 12, 1918 | E. Ritz, Jr. | Internal and External Grinder | |
1,259,131 | Mar. 12, 1918 | E. Ritz, Jr. | Grinder | |
1,259,132 | Mar. 12, 1918 | E. Ritz, Jr. | Portable electric tool | handheld grinders |
1,380,595 | Jun. 07, 1921 | E. Ritz, Jr. | Quick-throw electric switch | handheld power tools |
1,938,723 | Dec. 12, 1933 | E. Ritz, Jr. | Grinding machine | bench or pedestal grinders |
1,953,133 | Apr. 03, 1934 | E. Ritz, Jr. | Construction of grinders for use in lathes or the like | wood lathe accessories |
1,982,483 | Nov. 27, 1934 | E. Ritz, Jr. | Grinding machine | bench or pedestal grinders |
2,003,495 | Jun. 04, 1935 | E. Ritz, Jr. | Grinding machine | bench or pedestal grinders |