Synchronism Indicator (Crystal Clock Era) Patent Print
Patent No. US1762725 · 1930
Vintage 1930 patent drawing of the synchronism indicator (crystal clock era). Museum-quality archival giclée print.
From $64.00 — Fine Art Print, Canvas, and Framed options (up to $129.00).
Flat-rate $7.99 shipping. Standard delivery 5–10 business days. Shipping · Returns (30-day window).
About This Print
Vintage 1930 patent drawing of the synchronism indicator (crystal clock era). Museum-quality archival giclée print.
More Clocks & Watches patent prints · All patent art