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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