Work trestle
United States Patent 2431898
US Patent References:
/0067347.html
- - 0067347

/1298867.html
- - 1298867


Inventors:
Isadore, Witken
Publication Date:
12/02/1947
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Assignee:
Isadore, Witken
Primary Class:
182/155
Other Classes:
182/183.100
International Classes:
E04G1/34; E04G1/00