| 0687229 | ||||
| 1437987 | Attaching means for cables | |||
| 1533556 | Hoist-cable-securing device | |||
| 1555544 | Spool | |||
| 1913508 | Cable anchoring means for drums | |||
| 2141670 | Rope drum for needle looms | |||
| 2257484 | Overhead door construction | |||
| 2314015 | Counterbalance for overhead doors | |||
| 2329943 | Means for securing cables to hoist drums | |||
| 2453424 | Counterbalance mechanism |