Tracing table
United States Patent 2701838
US Patent References:
Illumination of pictures
- - 1348957
Hose-display device
- - 1587870
Tracing apparatus
- - 1929846
Chi-ray film viewer
- - 2436162
Portable vision testing kit having an eye testing target chart and illuminating means therefor
- - 2478662
Illumination of pictures
- - 1348957
Hose-display device
- - 1587870
Tracing apparatus
- - 1929846
Chi-ray film viewer
- - 2436162
Portable vision testing kit having an eye testing target chart and illuminating means therefor
- - 2478662
Inventors:
Loesch, William S.
Publication Date:
02/08/1955
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Export Citation:
Assignee:
Loesch, William S.
Primary Class:
Other Classes:
362/222, 315/320, 362/218, 315/317
International Classes:
B43L5/00
US Patent References:
Foreign References:
| DE327899C | ||||
| AT97540B | ||||
| GB348061A |