Title:
QUICK RELEASE PRESSER FEET
United States Patent 3457889
US Patent References:
Screwless-type presser-foot clamp
- - 3270695

Adjustable presser foot support
- - 3326160


Inventors:
Killinger, Karl H.
Tullman, Edward J.
Publication Date:
07/29/1969
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Assignee:
SINGER CO
Primary Class:
112/240
International Classes:
D05B29/12; D05B29/00; D05B29/12
Foreign References:
CH362301A




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