United States Patent 2675800
US Patent References:
Electric motor
- - 1688891

Mechanical adjuster and manipulator
- - 2221785

Therapeutic vibrator and massage device
- - 2307554

Therapeutic device
- - 2425655


Publication Date:
04/20/1954
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Primary Class:
Other Classes:
D24/215
International Classes:
A61H23/02