Patent for "Arc spotlights for stage lighting and other purposes" 1912, Schwabe & co (Q39991)
From CanonBase
No description defined
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Patent for "Arc spotlights for stage lighting and other purposes" 1912, Schwabe & co | No description defined |
Statements
15 August 1922Gregorian
0 references