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✎ Suggest a correctionDescribes construction and the operation of headphones and loudspeakers. Sound Pictures. $2. SVE.
Complete catalog record
Category: Electronics
Subcategory: Oils.
Type: Slide Film
Source: Navy Castle
Catalog number: SN654
Subcategory: Oils.
Type: Slide Film
Source: Navy Castle
Catalog number: SN654
Sources
- Index of Training Films 1946 — title, creator, format, description, catalog record
- 3434 U.S. Government Films — title, year, creator, length, format, description, catalog record
Record added 2026-07-09 22:50:35 · Suggest a correction