Using A Protractor
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✎ Suggest a correctionCopyright
Registered 31Dec69 · MP21060 (Jan-Jun 1971) Copyright holder: Macmillan Co Production company: Davidson Films
Sources
- U.S. Copyright Office, Catalog of Copyright Entries (renewals, 1970–1978) — title, year, creator, length, copyright
Record added 2026-06-28T20:22:30Z · Suggest a correction