| All Patents in class 16/211 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 216,767 | Jun. 24, 1879 | F.S. Clarkson, F.B. Sloan | Improvement in sash-cord guides | door and window hardware |
| 347,507 | Aug. 17, 1886 | F.V. Phillips | Sash-cord guide | |
| 374,158 | Nov. 29, 1887 | F.V. Phillips | Sash-cord guide | |
| 481,510 | Aug. 23, 1892 | F.V. Phillips | Sash-pulley | door and window hardware |
| 828,698 | Aug. 14, 1906 | L. Zamboni | Pulley-frame | door and window hardware |
| 828,699 | Aug. 14, 1906 | R.H. Bowen, L. Zamboni | Pulley-frame | door and window hardware |
| 2,276,881 | Mar. 17, 1942 | F. Schimmel | Counterbalanced window sash | |
