1968, Century Memo-Q by George Van Buren
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2008, PRG V676
edit: The Master List now appears at https://www.controlbooth.com/threads/memory-lighting-control-systems-history.9203/ . Feel free to make any additions, provided they are accurate.
...
2008, PRG V676
edit: The Master List now appears at https://www.controlbooth.com/threads/memory-lighting-control-systems-history.9203/ . Feel free to make any additions, provided they are accurate.
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