Supports: racks – Special article – Paper or textile sheet type
Patent
1977-08-22
1980-09-16
Dorner, Kenneth
Supports: racks
Special article
Paper or textile sheet type
24 67R, 211DIG1, 248316R, A47F 716
Patent
active
042224896
ABSTRACT:
A clamping device for gripping a blade or leaf of material and adapted to be operated with one hand. The clamping device includes two opposed walls carrying magnetic elements to lock the walls together as a result of magnetic attraction and to separate the walls in response to magnetic repulsion therebetween. A third wall pivotally connects the first two walls to permit pivotal and parallel movement of the first two walls with respect to each other.
REFERENCES:
patent: 2448611 (1948-09-01), Martin
patent: 3468576 (1969-09-01), Beyer et al.
Dorner Kenneth
Nissen J. Harold
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