Revision history
US4507534A revision history
No events on file. Arc G is forward-only; the recorded event log accrues from Arc G adoption (2026-06-04). For the current state of patent US4507534A see the patent page.
Patent
Forward-only note
Arc G is forward-only. The event log accrues from the Arc G adoption point. Fields with no events post-baseline equal the current cached value and are not independently verified at any prior date.
Machine-readable: /patents/patent-us4507534a-comau-welding-robot/history.md.