Ehrenfeld, Charles Hatch, 1864–
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- Open Library: OL2445555A
- pdbooks.info ID: 50538
Charles Hatch Ehrenfeld Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
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| Water for ice-making and refrigeration: a treatise on the questions involved in water supply and treatment of water for ice-making purposes--the water analysis and its interpretation--some common troubles with ice, their causes and means for eliminating or reducing them | 1928 | Author | |  | |  | | 
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