United States Patent 2988843
Inventors:
Christian, Knudsen Anders
Publication Date:
06/20/1961
Assignee:
Inst, For Produktudvikling
Other Classes:
108/4, 108/8
International Classes:
A47B27/08; A47B27/00
US Patent References:
| 2605156 | Self-locking mechanism for tilting top drafting tables | | | |