Ray directing device
United States Patent 2665387
US Patent References:
Apparatus for reducing secondary radiation from rontgen rays
- - 1465340
Grid for protecting rontgen images against secondary rays
- - 1476048
Fertilizing stick
- - 2067589
X-ray grid and method of making same
- - 2133385
Chi-ray apparatus
- - 2139966
Apparatus for reducing secondary radiation from rontgen rays
- - 1465340
Grid for protecting rontgen images against secondary rays
- - 1476048
Fertilizing stick
- - 2067589
X-ray grid and method of making same
- - 2133385
Chi-ray apparatus
- - 2139966
Inventors:
Bartow, John B.
Publication Date:
01/05/1954
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Assignee:
BARTOW BEACONS INC
Primary Class:
Other Classes:
52/249, 52/592.100, 378/150, 976/DIG.430, 52/223.700
International Classes:
G21K1/04; G21K1/02
US Patent References: