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Shows piston rings at work inside the engine.
Complete catalog record
Category: Automotive Industry
Subcategory: Motion Pict Prod
Type: Motion Picture
Source: Perfect Circle
Format code: 16sd
Subcategory: Motion Pict Prod
Type: Motion Picture
Source: Perfect Circle
Format code: 16sd
Sources
- Index of Training Films 1946 — title, creator, length, format, sound, description, catalog record
Record added 2026-07-09 22:50:35