Knob lock
United States Patent 2881867
US Patent References:
/1229693.html
- - 1229693

/1290382.html
- - 1290382

Wave-length indicator
- - 1523305

Device for facilitating instrument settings
- - 1588039

Dial lock
- - 2436921


Inventors:
Leon, Mayon
Publication Date:
04/14/1959
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Assignee:
Leon, Mayon
Primary Class:
188/72.800
Other Classes:
74/504, 74/553, 188/70R, 188/166, 74/10R
International Classes:
G05G5/12; G05G5/00
US Patent References:
2486723Floor clip