ELECTRICAL TAPE-SLIDE SYNCHRONIZING SYSTEM
United States Patent 3420966
US Patent References:
Control apparatus
- - 3200206
Apparatus for correlating the operation of sound reproducing and picture projecting devices
- - 3227814
Control apparatus
- - 3200206
Apparatus for correlating the operation of sound reproducing and picture projecting devices
- - 3227814
Inventors:
Wright, James T.
Publication Date:
01/07/1969
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Assignee:
James, Wright T.
Primary Class:
International Classes:
G09B5/06; G09B5/00; G11B5/00; G03B23/00