| Patents for Henry K. Spencer |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 1,079,304 | Nov. 18, 1913 | H.K. Spencer | Mounting Of Abrasive Wheels | grinder wheels |
| 1,125,198 | Jan. 19, 1915 | H.K. Spencer | Magnetic Chuck | magnetic chucks |
| 1,182,861 | May 09, 1916 | H.K. Spencer | Metal Working Tool | dial indicator gauges |
| 1,486,844 | Mar. 11, 1924 | H.K. Spencer | Abrasive Wheel Dresser | grinder dressers |
| 1,535,080 | Apr. 21, 1925 | H.K. Spencer | Means For Controlling Feeding Mechanisms | surface grinders |
| 1,544,695 | Jul. 07, 1925 | H.K. Spencer | Magnetic Holding Device | magnetic chucks |
| 1,548,562 | Aug. 04, 1925 | H.K. Spencer | Means For And Method Of Handling Work Pieces | magnetic chucks |
| 1,548,563 | Aug. 04, 1925 | H.K. Spencer | Means For Handling Articles | grinding attachments |
| 1,568,024 | Dec. 29, 1925 | H.K. Spencer | Magnetic Holding Device | magnetic chucks |
| 1,604,323 | Oct. 26, 1926 | H.K. Spencer | Magnetic Holding Device | magnetic chucks |
| 1,628,618 | May 10, 1927 | H.K. Spencer | Means For Handling Articles | grinding attachments |
| 1,689,176 | Oct. 23, 1928 | H.K. Spencer | Grinding Machine | surface grinders |
| 1,698,685 | Jan. 08, 1929 | H.K. Spencer | Abrasive Wheel | grinder wheels |
