Alt, Harold L. (Harold Lynn), 1885–
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- pdbooks.info ID: 79774
Harold L. (Harold Lynn) Alt Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
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| Alt's house heating plans | 1933 | Author | |  | |  | | 
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| Mechanical equipment of school buildings | 1916 | Author | | | | | |   
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| Modern heating | 1936 | Author | | | | | |
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| Practical air conditioning: a treatise for the designer, the contractor and the practical man | 1936 | Author | | | | | |
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