Record #2323
- Date:
- 16/04/1934
- Record Type:
- Letter
- From/By:
- B. Rosenberg
- To:
- Arthur S. Dickinson
- Reel:
- Reel 10
- Frame Start:
- 10-1577
- Frame End:
- 10-1579
- Legacy ID:
- 2336
- Legacy Year:
- 1934
- Legacy Index:
- Inventions
Rosenberg has an attachment for motion picture projectors that provides for the prevention of fire. All basic patents have been secured -- awaiting approval from the Fire Prevention Bureau. Included are two photographs of the device.
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