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CA Patent: CA-284,228
Oscillation amplifying system
Patentee:
Orin E. Marvel (exact or similar names) - Dayton, OH

USPTO Classifications:

Tool Categories:
electrical devices : electronic circuitry and apparatus

Assignees:
Dayton Fan & Motor Co. - Dayton, OH

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Oct. 23, 1928

Patent Pictures:
CIPO Data
Espacenet patent
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Dayton Fan & Motor Co.

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