Turnbull Variable-Pitch Propeller Patent Print
Patent No. US1828348 · 1931
Invented by Wallace Rupert Turnbull
Vintage 1931 patent drawing of the turnbull variable-pitch propeller by Wallace Rupert Turnbull. Museum-quality archival giclée print.
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About This Print
Vintage 1931 patent drawing of the turnbull variable-pitch propeller by Wallace Rupert Turnbull. Museum-quality archival giclée print.
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