Dust protective hood
United States Patent 2436249
US Patent References:
/0127331.html
- - 0127331
/0128451.html
- - 0128451
/0232233.html
- - 0232233
/0766426.html
- - 0766426
/1035217.html
- - 1035217
/0127331.html
- - 0127331
/0128451.html
- - 0128451
/0232233.html
- - 0232233
/0766426.html
- - 0766426
/1035217.html
- - 1035217
Inventors:
Clement, Edmund A.
Publication Date:
02/17/1948
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Assignee:
Clement, Edmund A.
Primary Class:
Other Classes:
2/174
International Classes:
A61F9/02; A62B17/04; A62B17/00
US Patent References:
| 1502679 | Protective hood |
Foreign References:
| GB191221828A | ||||
| FR493333A |