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The ornamental design for a worm gear unit for venetian blinds or the like, as shown. |
FIG. 1 is a front, top and right side perspective view of a worm gear unit for venetian blinds or the like showing my new design;
FIG. 2 is a rear, bottom and right side perspective view;
FIG. 3 is a right side elevated view;
FIG. 4 is a top plan view;
FIG. 5 is a bottom plan view;
FIG. 6 is a front elevational view; and
FIG. 7 is a rear elevational view.
Patent | Priority | Assignee | Title |
D291395, | Dec 05 1983 | HUNTER DOUGLAS INTERNATIONAL N V | Cordlock for raisable blind |
D345483, | Dec 05 1991 | Automatic venetian blind opener and closer | |
D568663, | Jan 12 2007 | Window blind string controller |
Patent | Priority | Assignee | Title |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Feb 19 1982 | BROLIN, HANS R | AB Perma System | ASSIGNMENT OF ASSIGNORS INTEREST | 003994 | /0194 | |
Mar 08 1982 | AB Perma System | (assignment on the face of the patent) | / |
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