Title:
Chimney top
Document Type and Number:
United States Patent 2856837

Inventors:
Thulman, Robert K.
Publication Date:
10/21/1958
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Assignee:
Thulman, Robert K.
Primary Class:
454/37
Other Classes:
285/43, 126/307R, 454/3
International Classes:
F23J11/00; F23L17/02; F23L17/00
US Patent References:
0098800
2437771Stack
2634720Chimney construction with heat controlling minimizing means
2687127Insulated flue
2713301Sheet metal chimney construction
Foreign References:
IT476035B




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