Test tube holder
United States Patent 2441734
US Patent References:
/D090966.html
- - D090966

Stand or support
- - 1826474

/1198929.html
- - 1198929

/2371210.html
- - 2371210


Inventors:
Hyning, Betty Van A.
Publication Date:
05/18/1948
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Assignee:
Hyning, Betty Van A.
Primary Class:
248/230.100
Other Classes:
248/314, 248/300, 248/311.200
International Classes:
B01L9/00