| Patents for H. J. Astle & Co. |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 863,832 | Aug. 20, 1907 | F.P. Boland | Positive-pressure blower | blowers |
| 914,105 | Mar. 02, 1909 | F.P. Boland | Sand-blast machine | sand blasters |
| 914,783 | Mar. 09, 1909 | F.P. Boland | Sand-blast machine | sand blasters |
| 959,049 | May 24, 1910 | F.P. Boland | Positive-pressure blower | blowers |
| 969,453 | Sep. 06, 1910 | F.P. Boland | Machine for drying jewelry, &c. | jeweler |
| 981,911 | Jan. 17, 1911 | F.P. Boland | Sawdust-box | jeweler |
| 1,154,167 | Sep. 21, 1915 | F.P. Boland | Process of drying jewelry | jeweler |
| 1,163,205 | Dec. 07, 1915 | F.P. Boland | Apparatus for drying jewelry and the like | jeweler |
| 1,217,397 | Feb. 27, 1917 | F.P. Boland | Process and means for filtering water | jeweler |
